Draw and label plane fgh brainly

Direction: Draw and label a figure for each condition. 1. Plane FTM 2.planes A and D meet at line PQ 3.Points W lies on line PR 4.Line Z intersecting line TQ at point M. 5. Line S and point P are on plane B Draw and label an example of each geometric figure. 5. PQ! 6. ST#! 7. XY! 8. plane FGH 9. If 3 points are labeled on a line, how many different line segments can be named on that line? How many different rays? 3 different line segments and 6 different rays 10. Name every geometric figure that is part of line AB. points A and B, AB#!, A!!B. Now draw a ray from E through G such that it intersects the first ray. Your creation should be a closed shape resembling a triangle. Label the point of intersection of the two rays F, and draw ∆DEF by creating a polygon through points D, E, and F. Click on point G, and move it around The Brainly community is constantly buzzing with the excitement of endless collaboration, proving that learning is more fun — and more effective — when we put our heads together. Help the community by sharing what you know. Answering questions also helps you learn

The corresponding congruent angles are marked with arcs. See picture above. For those same two triangles, ABC and DEF, we know the following: (1) line segment AB is to line segment DE. (2) line segment BC is to line segment EF. (3) line segment AC is to line segment DF. (4) angle A is to angle D. (5) angle B is to angle E AMathematical Practices Draw a triangle and label the vertices A, B, and C. Then draw a point P . Mark P as a center. This will allow you to rotate figures around point P. B Select ABC and rotate it 90° around point P. Label the image of ABC as A′B′C ′. Change the shape, size, or location of ABC and notice ho Triangle FGH is graphed on the coordinate plane below. The figure is rotated 180° using the origin as the center of rotation. How do the coordinates of the vertices of the preimage compare to the coordinates of the vertices of the image? C.(x,y)-(-x,-y The trick is to divide by 360 (full circle) then subtract the whole number and re-multiply the decimal times 360. So -990/360 is -2.75, add 2 to get -.75 * 360 = -270. OR if you add 3, you end up with .25 * 360 = 90. Both 90 and -270 are the same angle on the unit circle. 3 comments Show that a quadrilateral is a parallelogram in the coordinate plane. Identifying and Verifying Parallelograms Given a parallelogram, you can use the Parallelogram Opposite Sides Theorem (Theorem 7.3) and the Parallelogram Opposite Angles Theorem (Theorem 7.4) to prove statements about the sides and angles of the parallelogram. The converses of th

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  1. 210 Chapter 4 Transformations In the coordinate plane, you can have scale factors that are negative numbers. When this occurs, the ! gure rotates 180°. So, when k > 0, a dilation with a scale factor of −k is the same as the composition of a dilation with a scale factor of k followed by a rotation of 180° about the center of dilation
  2. I have an equation right here it's a second degree equation it's a quadratic and I know it's graph is going to be a parabola this was a review that means it looks something like this or it looks something like that because the coefficient on the x squared term here is positive and it's going to be an upward-opening parabola and I am curious about the vertex of this parabola and if I have an.
  3. what we're going to do in this video is look at all of the ways of describing how to translate a point and then to actually translate that point on our coordinate plane so for example they say plot the image of point P under a translation by five units to the left and three units up so let's just do that at first and then we're gonna think about other ways of describing this so we want to go.
  4. Grammarly keeps security at the heart of our product, infrastructure, and company operations. Learn more about our security practices.Grammarly's SOC 2 (Type 2) report attests to our enterprise-grade system and organization controls regarding security, privacy, availability, and confidentiality
  5. The reference angle is the positive acute angle that can represent an angle of any measure.. The reference angle $$ \text{ must be } 90^{\circ} $$.. In radian measure, the reference angle $$\text{ must be } \frac{\pi}{2} $$.. Basically, any angle on the x-y plane has a reference angle, which is always between 0 and 90 degrees. The reference angle is always the smallest angle that you can make.
  6. 90 DEGREE COUNTERCLOCKWISE ROTATION RULE. When we rotate a figure of 90 degrees counterclockwise, each point of the given figure has to be changed from (x, y) to (-y, x) and graph the rotated figure. Example 1 : Let F (-4, -2), G (-2, -2) and H (-3, 1) be the three vertices of a triangle. If this triangle is rotated 90° counterclockwise, find.

we're asked to plot the image of point a under a reflection across the line L so we have our line L here and so we want to plot the image of here a point P plot the image of point a under reflection across line L well one way to think about it is point a is exactly one two three four units to the right of L and so it's reflection is going to be four units to the left of L so if we go one two. If you are looking for draw and label the external features of a fish you've come to the right place. We have 9 images about draw and label the external features of a fish adding images, Pictures Photograph wallpapers, and more. In these Web page we also have variety of images Attainable Such as png, jpg, lively gifs, pic art, logo, black and white, Obvious etc Draw the height AD to form a 30-60-90 triangle. Point D's coordinates are (4,0), and the length of BD is 2√3 (since BD is perpendicular to the x axis, its length is its y coordinate). In a recycled 30-60-90 triangle the length of one side is sufficient to find the other two, so you can find that AD=2 using the recycled ratio box Roblox is ushering in the next generation of entertainment. Imagine, create, and play together with millions of people across an infinite variety of immersive, user-generated 3D worlds


Sketch two planes whose intersection is a line. 6. Sketch three planes whose intersection is a point. 7. Draw and label three collinear points X, Y, and Z such that point Y is between points X and Z and the distance between points X and Y is one half the distance between points Y and Z. 8. Use a symbol to represent the name of each geometric. Studying & Practicing Math Geometry would be done in a fun learning process for a better understanding of the concepts. So, the best guide to prepare math in a fun learning way is our provided Big Ideas Math Geometry Answers Chapter 8 Similarity Guide. In this study guide, you will discover various exercise questions, chapter reviews, tests, chapter practices, cumulative assessment, etc. to. Geometry Mid-Term. 1. Name a line that contains point J. 2. Name the plane containing lines m and p. Nice work! You just studied 74 terms! Now up your study game with Learn mode

Congruent Triangles - Free Math Hel

1. Angle 1 and angle 2 are vertical angles. 2. M angle 1= m angle 2. Vertical angles theorem. The diagram below shows 2 parallel lines m and n cut by a transversal, k. Angles A,B and C are shown in the diagram. Reason 2 is correct but reason 3 should be alternate interior angles are congruent Start studying Geometric Transformations: Part 2 Unit Test 92%. Learn vocabulary, terms, and more with flashcards, games, and other study tools Draw a segment. Label a point D on the segment. Draw an arc with center B, and label the intersection points A and C. Using the same radius, draw an arc with center D. Label the point of intersection of the arc with radius BC with center D. Label the intersection F. Draw DF. So, ∠B ≅ ∠FDE. 5.7 Using Congruent Triangles. Exploration NCERT Solutions for Class 8 Maths Chapter 11 Mensuration- It is a branch of mathematics in which we deal with different geometric shapes both 2D and 3D shapes. It is a process of measurement. In this chapter, you will study different geometrical shapes like circle, quadrilateral, triangle, cube, cuboid, sphere, cylinder, cone and their area and volume Label the endpoints of the diameter D and E, with D the endpoint closer to B. Let x be the length of CX that we are to find. Then CD is 3-x and CE is 3+x. When two chords intersect inside a circle, the product of the lengths of the two parts of one chord is equal to the product of the lengths of the two parts of the other chord

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Rotating shapes about the origin by multiples of 90

Reflections in the Coordinate Plane Since reflections are perpendicular to and equidistant from the line of reflection, we can find the exact image of a point or a figure in the coordinate plane. Slide 36 / 154 Reflections in the Coordinate Plane Reflect A, B, & C over the y-axis. A B C Notation Ry-axis(A) = A' Ry-axis(B) = B' Ry-axis(C) = C Dilation. In mathematics, dilation is a type of transformation in which the size of a shape or geometric figure is changed, but the relative proportions and shape remain the same. Below are several examples. The quadrilateral and cube above are dilated to produce smaller versions of the respective shapes. The model airplane to the right is. Graph g (x)=x. g(x) = x g ( x) = x. Rewrite the function as an equation. y = x y = x. Use the slope-intercept form to find the slope and y-intercept. Tap for more steps... The slope-intercept form is y = m x + b y = m x + b, where m m is the slope and b b is the y-intercept. y = m x + b y = m x + b. Find the values of m m and b b using the form. Label the midpoint D. CUse a compass to find the midpoint of AC¯ . Label the midpoint E. D Use a straightedge to draw _ DE. DE _ is one of the midsegments of the triangle. E Repeat the process to find the other two midsegments of ABC. You may want to label the midpoint of _ BCextend between the slanting beams and stabilize as F. Module 8 395. Calculator Use. An equilateral triangle is a special case of a triangle where all 3 sides have equal length and all 3 angles are equal to 60 degrees. The altitude shown h is h b or, the altitude of b. For equilateral triangles h = ha = hb = hc. If you have any 1 known you can find the other 4 unknowns. So if you know the length of a side = a.

Line Segment Definition - Math Open Referenc

Dilation Transformation (Solutions, Examples, Videos

Draw the image for each rotation. 2. 4. 6' Rotate triangle DEF around point Rotate figure]KLM 180G around the origin. L' (3.5) (-1-0 Which is the image Of the point (—7, —10) after a 900-counterclockwise rotation around the origin? 3. Rotate AB 900 clockwise around point C. 01 Rotate GH 90c the origin. G 35 Choose the best answer. 5 There are four ways we can name this angle: ∠ FGH, ∠ HGF, ∠ G, ∠ 1. 2. Locate ∠ DBC in the figure. ∠ DBC is highlighted in the image below. Take up the challenge! The below picture has V as its vertex. The task is for you to identify and name all the angles that can be formed from within the image Rule. When we rotate a figure of 180 degrees about the origin either in the clockwise or counterclockwise direction, each point of the given figure has to be changed from (x, y) to (-x, -y) and graph the rotated figure. Let us look at some examples to understand how 180 degree rotation about the origin can be done on a figure


  1. Side-Side-Side (SSS) Rule. Side-Side-Side is a rule used to prove whether a given set of triangles are congruent.. The SSS rule states that: If three sides of one triangle are equal to three sides of another triangle, then the triangles are congruent.. In the diagrams below, if AB = RP, BC = PQ and CA = QR, then triangle ABC is congruent to triangle RPQ.. Side-Angle-Side (SAS) Rul
  2. The exercises are designed to aid your study of mathematics by reinforcing important mathematical skills needed to succeed in the everyday world. The materials are organized by chapter and lesson, with two Study Guide and Intervention worksheets for every lesson in Glencoe Geometry. Always keep your workbook handy
  3. Boreal (14135) You can put this solution on YOUR website! Draw this triangle with AB=8 an AC=9. Angle A is 60 degrees, because the angle from AB to the South line is 40 degrees and there is 20 more degrees to reach AC. Use the law of cosines. side a^2 opposite to angle A=b^2+c^2-2bc CosA. =64+81-2 (72)*0.5. =145-72

Area of a Triangle tutorial. Pictures, examples and many practice problems on how to find the area of a triangle from its base and its height Area of Triangle =. Now, we can easily derive this formula using a small diagram shown below. as shown in the diagram and we want to find its area. Let the coordinates of vertices are (x1, y1), (x2, y2) and (x3, y3). We draw perpendiculars AP, BQ and CR to x-axis

but we have drawn over here is five different triangles and what I want to do in this video is figure out which of these triangles are congruent to which other of these triangles and to figure that out I'm just over here going to write our our triangle congruence postulate so we know that two triangles are congruent if all of their sides are the same so side side side we also know they are. Finding the Area of a Triangle Using Its Coordinates. The first formula most encounter to find the area of a triangle is A = 1 ⁄ 2bh. To use this formula, you need the measure of just one side of the triangle plus the altitude of the triangle (perpendicular to the base) drawn from that side. The triangle below has an area of A = 1 ⁄ 2 (6.

Video: Perpendicular Bisector (Definition, Properties and

They can be at any angle or orientation on the plane. In the figure above, there are two congruent line segments. Note they are laying at different angles. If you drag any of the four endpoints, the other segment will change length to remain congruent with the one you are changing. For line segments, 'congruent' is similar to saying 'equals' A rhombus is a type of parallelogram, and what distinguishes its shape is that all four of its sides are congruent.. There are several formulas for the rhombus that have to do with its: Sides (click for more detail). All 4 sides are congruent. Angles. Diagonals bisect vertex angles If needed, draw the right triangle and label the angle provided. Identify the angle, the adjacent side, the side opposite the angle, and the hypotenuse of the right triangle. Find the required function: sine as the ratio of the opposite side to the hypotenuse. cosine as the ratio of the adjacent side to the hypotenuse Find BZ, CU, UZ, and BU. It's a 6-8-10 triangle, so BZ is 10. Next, set CU equal to x. UZ then becomes 8 - x. Set up the angle-bisector proportion and solve for x: So CU is 3 and UZ is 5. The Pythagorean Theorem then gives you BU: Calculate the area of triangle BCU and triangle BUZ. Both triangles have a height of 6 (when you use segment CU. Find x. Round angle measures to the nearest degree and side measures to the nearest tenth. 62/87,21 We are given the measure of two angles and a nonincluded side, so us

Draw a line between the base to the opposite vertex. Make sure the line hits the base at a right angle. The length of this line is the height of your triangle, so label it h. Once you calculate the value of h, you'll be able to find the area. In an isosceles triangle, this line will always hit the base at its exact midpoint Virtual Nerd's patent-pending tutorial system provides in-context information, hints, and links to supporting tutorials, synchronized with videos, each 3 to 7 minutes long. In this non-linear system, users are free to take whatever path through the material best serves their needs. These unique features make Virtual Nerd a viable alternative to private tutoring The scale factor of these similar triangles is 5 : 8. Example 3: The perimeters of two similar triangles is in the ratio 3 : 4. The sum of their areas is 75 cm 2. Find the area of each triangle. If you call the triangles Δ 1 and Δ 2, then. According to Theorem 60, this also means that the scale factor of these two similar triangles is 3 : 4 Recall that the centroid of a triangle is the point where the triangle's three medians intersect. It is also the center of gravity of the triangle. For more see Centroid of a triangle. The coordinates of the centroid are simply the average of the coordinates of the vertices.So to find the x coordinate of the orthocenter, add up the three vertex x coordinates and divide by three Triangle FGH ≅ triangle KLJ ____ 36. Classify each angle. a. adjacent b. acute c. obtuse d. straight ____ 37. Draw a tree diagram or use the Fundamental Counting Principle to find the number of possible outcomes if there are 4 true-false questions on a quiz. a. 12 b. 16 c. 6 d. 8. 1

For exercises 1-5, draw and carefully label the figures. Use the appropriate marks to indicate right angles, parallel lines, congruent segments, and congruent angles. Use a protractor and a ruler where you need to. USE A SEPARATE SHEET OF PAPERAND MAKE A COMPLETE DRAWING. IF MOST OF YOUR DRAWING CAN BE COVERED UP BY A QUARTER THEN IT IS TOO. Use a ruler, protractor, and/or compass to draw the next three right triangles in the spiral. Extend the pattern in the lengths of the hypotenuse and label the sides of each new triangle. View Answe

Draw and label points E and F. Then draw EF in one color and FE in another color. 26. 28 29. Do EF and FE share an endpoint? Underline another name for plane BFE. ABF BCD BCG CDH FGH 32. Now name two planes that intersect in BF. Chapter 1 . Using Postulate 1—4 Problem 4 Got It? What plane contains points L, M, and N? Shade the plane. 33. Area of an equilateral triangle. To calculate the area of an equilateral triangle you only need to have the side given: area = a² * √3 / 4. Although we didn't make a separate calculator for the equilateral triangle area, you can quickly calculate it in this triangle area calculator Cheap essay writing sercice. If you need professional help with completing any kind of homework, Success Essays is the right place to get it. Whether you are looking for essay, coursework, research, or term paper help, or with any other assignments, it is no problem for us Watch this quick video tutorial on creating Venn diagrams with SmartDraw. The first step to creating a Venn diagram is deciding what to compare. Place a descriptive title at the top of the page. Create the diagram. Make a circle for each of the subjects. Every circle should overlap with at least one other circle. Label each circle

Congruent Triangles - Explanation & Examples. You must be well aware of the photocopy machine. When you put an A4 page inside the machine and activate it, you get an identical copy of that page. If you rotate or flip the page, it will remain the same as the original page Rotation of Images — Practice Geometry Questions. In geometry, when you rotate an image, the sign of the degree of rotation tells you the direction in which the image is rotating. A positive degree measurement means you're rotating counterclockwise, whereas a negative degree measurement means you're rotating clockwise Eleanor Roosevelt High Schoo

Alternate Interior Angles. When a line intersects a pair of parallel lines alternate interior angles are formed. Alternate interior angles are equal to each other. One way to find the alternate interior angles is to draw a zigzag line on the diagram. In the above diagrams, d and e are alternate interior angles. Similarly, c and f are also alternate interior angles This app is amazing. - High School Student. [The app provides] great exposure to different types of learning materials for students to learn from, as well as teaches students to use multiple sources to draw conclusions for questions or scenarios. - High School Science Teacher

Finding the vertex of a parabola in standard form (video

Study Tip Draw Geometric Figures Draw and label a figure for each relationship. a. ALGEBRA Lines GH and JK intersect at L for G( 1, 3), H(2, 3), J( 3, 2), and K(2, 3) on a coordinate plane. Point M is coplanar with these points, but not collinear with GH or JK. Graph each point and draw GH and JK. Label the intersection point as L Google Photos is the home for all your photos and videos, automatically organized and easy to share • Two plane figures, say, F 1 and F 2 are said to be congruent, if the trace-copy of F 1 fits exactly on that of F 2. We write this as F 1 ≅ F 2 hello. i am trying to draw a template for a project. but i don't have a protractor. i'm trying to draw a normal pentagon with 2cm sides. what i'm trying to figure out is the distance in centimeters from point a, to c, in a straight line. this is needed so that i can measure and create the shape without a protractor, and keep the angles and. Steps for creating the first design: Draw a 12-by-12 frame. Then draw half an Astrid (see the instructions on page 8 of the student book) on the left side of the frame. Draw three more halfAstrids, on the top, right, and bottom of the frame. 2 lines of reflectional symmetry. 10. Answers will vary. Steps for creating the second design: 11.

62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. 62000. ROTATION 90 DEGREES COUNTERCLOCKWISE ABOUT THE ORIGIN WORKSHEET. Problem 1 : Let F (-4, -2), G (-2, -2) and H (-3, 1) be the three vertices of a triangle. If this triangle is rotated 90° counterclockwise, find the vertices of the rotated figure and graph. Problem 2 The ratio of the area of one figure to the area of another, similar figure is equal to the square of the scale factor between the two figures. The ratio of the volume of one figure to the volume.

ALL YOUR PAPER NEEDS COVERED 24/7. No matter what kind of academic paper you need, it is simple and affordable to place your order with My Essay Gram Reflection Over An Axis. In this video, you will learn how to do a reflection over an axis, such as the x-axis or y-axis. To reflect a shape over an axis, you can either match the distance of a point to the axis on the other side of using the reflection notation. To match the distance, you can count the number of units to the axis and plot a. Find . Possible Answers: Correct answer: Explanation: In a parallelogram, consecutive angles are supplementary (i.e. add to ) and opposite angles are congruent (i.e. equal). Using these properties, we can write a system of equations. 1. Undefined control sequence \measuredangle. 2 Theorem 36: If two sides of a triangle are unequal, then the measures of the angles opposite these sides are unequal, and the greater angle is opposite the greater side. Theorem 37: If two angles of a triangle are unequal, then the measures of the sides opposite these angles are also unequal, and the longer side is opposite the greater angle. Example 1: Figure 1 shows a triangle with angles of.

bansal classes notes for class 11th . Enter the email address you signed up with and we'll email you a reset link Draw and label a figure to represent the congruent triangle. Then find X and Y. Triangle YXZ congruent triangle CAB, m . MATH. Use the figure to answer the following questions. figure for questions 1-3 1. Name a pair of complementary angles Draw the free-body diagram of the car showing the new geometry. Suppose that the cable from A to B must exert a 8500 N horizontal force on the car to hold it in place. Determine the car's weight in pounds. AB 20 Solution: The free-body diagram is shown to the right. Applying the equilibrium equations F x: T Nsin30°D 0, F y: Ncos30° mg D 0. A strong and engaged private sector is indispensable to ending extreme poverty and boosting shared prosperity. That's where IFC comes in—we have more than 60 years of experience in unlocking private investment, creating markets and opportunities where they're needed most. Since 1956, IFC has leveraged $2.6 billion in capital to deliver more than $265 billion in financing for businesses. Draw and label a figure to represent the congruent triangle. Then find X and Y. Triangle YXZ congruent triangle CAB, m . Geometry. Hey! Thanks for checking my question out! ____ 5. In an isosceles triangle with two congruent sides, the angles across from the legs are called _____ angles. My Answer: base Could someone please check my answer

Translating points (video) Translations Khan Academ

Two-dimensional figure: A figure that lies in a plane. Congruent Triangles (and other figures) This section will help your child to identify the characteristics of congruent figures. Two figures are congruent if they are the: Exact same shape; Exact same size Angle measures are equal; Line segments are equal; Look at the example below A Line Crosses A Pair of Parallel Lines If a set of 2 parallel lines, line l and line m, are crossed or cut by another line, line n, we say a set of parallel lines are cut by a transversal. Each of the parallel lines cut by the transversal has 4 angles surrounding the intersection Step 1 On grid paper, draw a vertical and horizontal axis as shown. Make your graph large enough to fill most of the sheet. Label the horizontal axis 0 to 120 and the vertical axis 0 to 60,000. Step 2 To make graphing easier, let x represent the number of years since 1900. Write the eight ordered pairs using this method. The first will be (0. On the graph, plot points B and C. Note that the slope of BC is -3/2. (You can use the formula or just write it out.) Note that the slope of AB must be 2/3 to be perpendicular. Go up 2 over 3, make a point at (0, 1). Repeat up 2 over 3, make a point at (3, 3). Label this A. Draw a line from A to C. You have a right triangle. State that x = 3 The following points are plotted on a coordinate plane:(-1,2),(-1,7), and (4,2). If the points are connected by straight lines, which shape will they form? A. an acute triangle***** B. a right triangle C. an obtuse triangle D. a quadrilateral Am i right?? math. The height of a triangle is 4 in. greater than twice its base

#1 NEW YORK TIMES BESTSELLER The seven-time #1 New York Times bestselling author, Fox News star, and radio host Mark R. Levin explains how the dangers he warned against in the timely yet timeless (David Limbaugh, author of Jesus Is Risen) bestseller Liberty and Tyranny have come to pass. In 2009, Mark R. Levin galvanized conservatives with his unforgettable manifesto Liberty and Tyranny. (Lessons 1.3, 1.5, 1.6, 1.7) Draw and carefully label each figure. 8. Supplementary angles ABD and DBC with m ABD 90° You can use a sheet of paper to represent the plane. Draw two lines on the paper to represent the two lines in the plane. The third line is not contained in the plane. Represent this line with a pencil 0 : 10080 claros: 10081 lotería: 10082 ami: 10083 BI@@: 10084 dirigidos: 10085 traslados: 10086 Feria: 10087 Española: 10088 mía: 10089 exten@@: 10090 Guinea.

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Answer: 3 on a question Sampong pangungusap ng balangkas? - the answers to realanswers-ph.co After 3 minutes the plane levels off and continues flying at a constant altitude. a Calculate the distance in metres that the plane flies through the air, before reaching its cruising altitude. b Find the cruising altitude of the plane in metres, correct to 1 significant figure. 22 In the isosceles PQR, PQ = PR and S is a point on QR such that. 4. The expenses incurred by farmers for digging bore-wells and for installing motors and pump-sets to draw groundwater will be completely reimbursed by the Government. Select the correct answer using the codes given below : (a) 1 only (b) 1 and 2 only (c) 3 and 4 only (d) 1, 2, 3 and 4 ANSWER: (a) 56 The FA20E and FA20F engines have a cast aluminium alloy cylinder head with chain-driven double overhead camshafts per cylinder bank. The four valves per cylinder - two intake and two exhaust - were actuated by roller rocker arms which had built-in needle bearings that reduced the friction that occurred between the camshafts and the roller rocker arms Cultural Identity. EDF 2555-600. Jacob Bierman. Dr. Brenda Page. June 6, 2013 Introduction Children are greatly influenced by the media. They watch television and have easy access to movies on television and those that family members rent

Reference Angle: How to find the reference angle as a

A Linear Pair is two adjacent angles whose non-common sides form opposite rays. ∠1 and ∠2 form a linear pair. The line through points A, B and C is a straight line. ∠1 and ∠2 are supplementary. If two angles form a linear pair, the angles are supplementary. A linear pair forms a straight angle which contains 180º, so you have 2 angles.