Fair Game Review. Chapter 11. Name Date. Reflect the point in (a) the x-axis and (b) the y-axis. 2. ( 2, 4) 1. ( 1, 1 ) 3. ( 3, 3) 4.
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1 Name Date Chapter Fair Game Review Reflect the point in (a) the -ais and (b) the -ais.. (, ). (, ). (, ). (, ) 5. (, ) 6. (, ) Copright Big Ideas Learning, LLC
2 Name Date Chapter Fair Game Review (continued) Draw the polgon with the given vertices in a coordinate plane. 7. A(, ), B(, 7 ), C( 6, 7 ), D ( 6, ) 8. E(, 8 ), F(, ), G( 6, ), H ( 6, 8) I( 7, 6, ) J( 5,, ) K (, ) 0. L(, 5 ), M(, ), N ( 8, ) O(, 7, ) P( 6, 7, ) Q( 9,, ) R (, ). S( 9, 9, ) T( 7,, ) U(,, ) V (, 7) Copright Big Ideas Learning, LLC
3 Name Date. Congruent Figures For use with Activit. Essential Question How can ou identif congruent triangles? Two figures are congruent when the have the same size and the same shape. ACTIVITY: Identifing Congruent Triangles Work with a partner. Which of the geoboard triangles below are congruent to the geoboard triangle at the right? a. b. c. d. e. f. Copright Big Ideas Learning, LLC 5
4 Name Date. Congruent Figures (continued) Form each triangle on a geoboard. Measure each side with a ruler. Record our results in the table. Side Side Side Given Triangle a. b. c. d. e. f. Write a conclusion about the side lengths of triangles that are congruent. 6 Copright Big Ideas Learning, LLC
5 Name Date. Congruent Figures (continued) ACTIVITY: Forming Congruent Triangles Work with a partner. a. Form the given triangle in Activit on our geoboard. Record the triangle on geoboard dot paper. b. Move each verte of the triangle one peg to the right. Is the new triangle congruent to the original triangle? How can ou tell? c. On a 5-b-5 geoboard, make as man different triangles as possible, each of which is congruent to the given triangle in Activit. Record each triangle on geoboard dot paper. What Is Your Answer?. IN YOUR OWN WORDS How can ou identif congruent triangles? Use the conclusion ou wrote in Activit as part of our answer.. Can ou form a triangle on our geoboard whose side lengths are,, and 5 units? If so, draw such a triangle on geoboard dot paper. Copright Big Ideas Learning, LLC 7
6 Name Date. Practice For use after Lesson. The figures are congruent. Name the corresponding angles and the corresponding sides.. A. J K D C B M J L K N M L R Q S P T Tell whether the two figures are congruent. Eplain our reasoning The tops of the desks are identical. a. What is the length of side NP? A ft B C J K ft L H ft G F R Q ft P 6 ft b. Side AB is congruent to side CD. What is the length of side AB? ft E ft D N M 8 Copright Big Ideas Learning, LLC
7 Name Date. Translations For use with Activit. Essential Question How can ou arrange tiles to make a tessellation? ACTIVITY: Describing Tessellations Work with a partner. Can ou make the tessellation b translating single tiles that are all of the same shape and design? If so, show how. a. Sample: Tile Pattern Single Tiles b. c. Copright Big Ideas Learning, LLC 9
8 Name Date. Translations (continued) ACTIVITY: Tessellations and Basic Shapes Work with a partner. a. Which pattern blocks can ou use to make a tessellation? For each one that works, draw the tessellation. b. Can ou make the tessellation b translating? Or do ou have to rotate or flip the pattern blocks? ACTIVITY: Designing Tessellations Work with a partner. Design our own tessellation. Use one of the basic shapes from Activit. Sample: Step : Start with Step : Cut a design out Step : Tape it to the other side a square. of one side. to make our pattern. Step : Translate the pattern to make our tessellation. Step 5: Color the tessellation. 50 Copright Big Ideas Learning, LLC
9 Name Date. Translations (continued) ACTIVITY: Translating in the Coordinate Plane Work with a partner. a. Draw a rectangle in a coordinate plane. Find the dimensions of the rectangle. b. Move each verte units right and units up. Draw the new figure. List the vertices. c. Compare the dimensions and the angle measures of the new figure to those of the original rectangle. d. Are the opposite sides of the new figure parallel? Eplain. e. Can ou conclude that the two figures are congruent? Eplain. f. Compare our results with those of other students in our class. Do ou think the results are true for an tpe of figure? What Is Your Answer? 5. IN YOUR OWN WORDS How can ou arrange tiles to make a tessellation? Give an eample. 6. PRECISION Eplain wh an parallelogram can be translated to make a tessellation. Copright Big Ideas Learning, LLC 5
10 Name Date. Practice For use after Lesson. Tell whether the shaded figure is a translation of the nonshaded figure..... Translate the figure units left 5. Translate the triangle 5 units and unit down. What are the right and units up. What are coordinates of the image? the coordinates of the image? O O 6. Describe the translation from the shaded figure to the nonshaded figure. O 5 Copright Big Ideas Learning, LLC
11 Name Date. Reflections For use with Activit. Essential Question How can ou use reflections to classif a frieze pattern? Frieze A frieze is a horizontal band that runs at the top of a building. A frieze is often decorated with a design that repeats. All frieze patterns are translations of themselves. Some frieze patterns are reflections of themselves. ACTIVITY: Frieze Patterns and Reflections Work with a partner. Consider the frieze pattern shown. * a. Is the frieze pattern a reflection of itself when folded horizontall? Eplain. b. Is the frieze pattern a reflection of itself when folded verticall? Eplain. *Cut-outs are available in the back of the. Copright Big Ideas Learning, LLC 5
12 Name Date. Reflections (continued) ACTIVITY: Frieze Patterns and Reflections Work with a partner. Is the frieze pattern a reflection of itself when folded horizontall, verticall, or neither? a. b. ACTIVITY: Reflecting in the Coordinate Plane Work with a partner. a. Draw a rectangle in Quadrant I of a coordinate plane. Find the dimensions of the rectangle. b. Cop the aes and the rectangle onto a piece of transparent paper. Flip the transparent paper once so that the rectangle is in Quadrant IV. Then align the origin and the aes with the coordinate plane. Draw the new figure in the coordinate plane. List the vertices. 5 Copright Big Ideas Learning, LLC
13 Name Date. Reflections (continued) c. Compare the dimensions and the angle measures of the new figure to those of the original rectangle. d. Are the opposite sides of the new figure still parallel? Eplain. e. Can ou conclude that the two figures are congruent? Eplain. f. Flip the transparent paper so that the original rectangle is in Quadrant II. Draw the new figure in the coordinate plane. List the vertices. Then repeat parts (c) (e). g. Compare our results with those of other students in our class. Do ou think the results are true for an tpe of figure? What Is Your Answer?. IN YOUR OWN WORDS How can ou use reflections to classif a frieze pattern? Copright Big Ideas Learning, LLC 55
14 Name Date. Practice For use after Lesson. Tell whether the shaded figure is a reflection of the nonshaded figure.... Draw the figure and its reflection in the -ais. Identif the coordinates of the image.. A(,, ) B(,, ) C (,) 5. W(,, ) X(,, ) Y(,, ) Z (,) O O Draw the figure and its reflection in the -ais. Identif the coordinates of the image. 6. J(, ), K(, 0 ), L (, ) 7. M(,, ) N(,, ) P(,, ) Q (,) O O 8. In a pinball game, when ou perfectl reflect the ball off of the wall, will the ball hit the bonus target? Wall BONUS 56 Copright Big Ideas Learning, LLC
15 Name Date. Rotations For use with Activit. Essential Question What are the three basic was to move an object in a plane? ACTIVITY: Three Basic Was to Move Things There are three basic was to move objects on a flat surface. the object. the object. the object. Work with a partner. a. What tpe of triangle is the shaded triangle? Is it congruent to the other triangles? Eplain. b. Decide how ou can move the shaded triangle to obtain each of the other triangles. c. Is each move a translation, a reflection, or a rotation? Copright Big Ideas Learning, LLC 57
16 Name Date. Rotations (continued) ACTIVITY: Rotating in the Coordinate Plane Work with a partner. a. Draw a rectangle in Quadrant II of a coordinate plane. Find the dimensions of the rectangle. b. Cop the aes and the rectangle onto a piece of transparent paper. Align the origin and the vertices of the rectangle on the transparent paper with the coordinate plane. Turn the transparent paper so that the rectangle is in Quadrant I and the aes align. Draw the new figure in the coordinate plane. List the vertices. c. Compare the dimensions and the angle measures of the new figure to those of the original rectangle. d. Are the opposite sides of the new figure still parallel? Eplain. e. Can ou conclude that the two figures are congruent? Eplain. f. Turn the transparent paper so that the original rectangle is in Quadrant IV. Draw the new figure in the coordinate plane. List the vertices. Then repeat parts (c) (e). 58 Copright Big Ideas Learning, LLC
17 Name Date. Rotations (continued) g. Compare our results with those of other students in our class. Do ou think the results are true for an tpe of figure? What Is Your Answer?. IN YOUR OWN WORDS What are the three basic was to move an object in a plane? Draw an eample of each.. PRECISION Use the results of Activit (b). a. Draw four angles using the conditions below. The origin is the verte of each angle. One side of each angle passes through a verte of the original rectangle. The other side of each angle passes through the corresponding verte of the rotated rectangle. b. Measure each angle in part (a). For each angle, measure the distances between the origin and the vertices of the rectangles. What do ou notice? c. How can the results of part (b) help ou rotate a figure? 5. PRECISION Repeat the procedure in Question using the results of Activit (f). Copright Big Ideas Learning, LLC 59
18 Name Date. Practice For use after Lesson. Tell whether the shaded figure is a rotation of the nonshaded figure about the origin. If so, give the angle and the direction of rotation... O O The vertices of a triangle are A(, ), B(, ), and C(, ). Rotate the triangle as described. Find the coordinates of the image.. 90 clockwise about the origin. 70 counterclockwise about verte A O O 5. A triangle is rotated 80 about the origin. Its image is reflected in the -ais.,,,, and,. What The vertices of the final triangle are ( ) ( ) ( ) are the vertices of the original triangle? 60 Copright Big Ideas Learning, LLC
19 Name Date.5 Similar Figures For use with Activit.5 Essential Question How can ou use proportions to help make decisions in art, design, and magazine laouts? In a computer art program, when ou click and drag on a side of a photograph, ou distort it. But when ou click and drag on a corner of the photograph, the dimensions remain proportional to the original. Original Photograph Distorted Distorted Proportional ACTIVITY: Reducing Photographs Work with a partner. You are tring to reduce the photograph to the indicated size for a nature magazine. Can ou reduce the photograph to the indicated size without distorting or cropping? Eplain our reasoning. a. b. 5 in. 6 in. 6 in. 8 in. in. in. 5 in. in. Copright Big Ideas Learning, LLC 6
20 Name Date.5 Similar Figures (continued) ACTIVITY: Creating Designs Work with a partner. a. Tell whether the dimensions of the new designs are proportional to the dimensions of the original design. Eplain our reasoning. Original Design Design b. Draw two designs whose dimensions are proportional to the given design. Make one bigger and one smaller. Label the sides of the designs with their lengths Copright Big Ideas Learning, LLC
21 Name Date.5 Similar Figures (continued) What Is Your Answer?. IN YOUR OWN WORDS How can ou use proportions to help make decisions in art, design, and magazine laouts? Give two eamples.. a. Use a computer art program to draw two rectangles whose dimensions are proportional to each other. b. Print the two rectangles on the same piece of paper. c. Use a centimeter ruler to measure the length and the width of each rectangle. Record our measurements here. I love this statue. It seems similar to a big statue I saw in New York. d. Find the following ratios. What can ou conclude? Length of larger Length of smaller Width of larger Width of smaller Copright Big Ideas Learning, LLC 6
22 Name Date.5 Practice For use after Lesson.5 Tell whether the two figures are similar. Eplain our reasoning In our classroom, a dr erase board is 8 feet long and feet wide. Your teacher makes individual dr erase boards for ou to use at our desk that are.5 inches long and 9.5 inches wide. Are the boards similar?. You have a 6 photo of ou and our friend. a. You order a 5 7 print of the photo. Is the new photo similar to the original? b. You enlarge the original photo to three times its size on our computer. Is the new photo similar to the original? 6 Copright Big Ideas Learning, LLC
23 Name Date.6 Perimeters and Areas of Similar Figures For use with Activit.6 Essential Question How do changes in dimensions of similar geometric figures affect the perimeters and the areas of the figures? ACTIVITY: Creating Similar Figures Work with a partner. Use pattern blocks to make a figure whose dimensions are,, and times greater than those of the original figure.* a. Square b. Rectangle ACTIVITY: Finding Patterns for Perimeters Work with a partner. Complete the table for the perimeter P of each figure in Activit. Describe the pattern. Figure Original Side Lengths Double Side Lengths Triple Side Lengths Quadruple Side Lengths P = P = *Cut-outs are available in the back of the. Copright Big Ideas Learning, LLC 65
24 Name Date.6 Perimeters and Areas of Similar Figures (continued) ACTIVITY: Finding Patterns for Areas Work with a partner. Complete the table for the area A of each figure in Activit. Describe a pattern. Figure Original Side Lengths Double Side Lengths Triple Side Lengths Quadruple Side Lengths A = A = ACTIVITY: Drawing and Labeling Similar Figures Work with a partner. a. Find another rectangle that is similar and has one side from (, 6 ) to ( 5, 6 ). Label the vertices. ( 6, ) (, ) 7 5 Check that the two rectangles are similar b showing that the ratios of corresponding sides are equal Shaded Length Unshaded Length? = Shaded Width Unshaded Width ( 6, ) (, ) 5 change in change in? = change in change in (, 6) (5, 6)? =? = The ratios are. So, the rectangles are. 66 Copright Big Ideas Learning, LLC
25 Name Date.6 Perimeters and Areas of Similar Figures (continued) b. Compare the perimeters and the areas of the figures. Are the results the same as our results from Activities and? Eplain. c. There are three other rectangles that are similar to the shaded rectangle and have the given side. Draw each one. Label the vertices of each. Show that each is similar to the original shaded rectangle. What Is Your Answer? 5. IN YOUR OWN WORDS How do changes in dimensions of similar geometric figures affect the perimeters and the areas of the figures? 6. What information do ou need to know to find the dimensions of a figure that is similar to another figure? Give eamples to support our eplanation. Copright Big Ideas Learning, LLC 67
26 Name Date.6 Practice For use after Lesson.6 The two figures are similar. Find the ratios (shaded to nonshaded) of the perimeters and of the areas The polgons are similar. Find You bu two picture frames that are similar. The ratio of the corresponding side lengths is : 5. What is the ratio of the areas? 68 Copright Big Ideas Learning, LLC
27 Name Date.7 Dilations For use with Activit.7 Essential Question How can ou enlarge or reduce a figure in the coordinate plane? ACTIVITY: Comparing Triangles in a Coordinate Plane Work with a partner. Write the coordinates of the vertices of the shaded triangle. Then write the coordinates of the vertices of the nonshaded triangle a. How are the two sets of coordinates related? b. How are the two triangles related? Eplain our reasoning. c. Draw a dashed triangle whose coordinates are twice the values of the corresponding coordinates of the shaded triangle. How are the dashed and shaded triangles related? Eplain our reasoning. Copright Big Ideas Learning, LLC 69
28 Name Date.7 Dilations (continued) d. How are the coordinates of the nonshaded and dashed triangles related? How are the two triangles related? Eplain our reasoning. ACTIVITY: Drawing Triangles in a Coordinate Plane Work with a partner a. Draw the triangle whose vertices are ( 0, ), (, ), and (, ). b. Multipl each coordinate of the vertices b to obtain three new vertices. Draw the triangle given b the three new vertices. How are the two triangles related? c. Repeat part (b) b multipling b instead of. 70 Copright Big Ideas Learning, LLC
29 Name Date.7 Dilations (continued) ACTIVITY: Summarizing Transformations Work with a partner. Make a table that summarizes the relationships between the original figure and its image for the four tpes of transformations ou studied in this chapter. What Is Your Answer?. IN YOUR OWN WORDS How can ou enlarge or reduce a figure in the coordinate plane? 5. Describe how knowing how to enlarge or reduce figures in a technical drawing is important in a career such as drafting. Copright Big Ideas Learning, LLC 7
30 Name Date.7 Practice For use after Lesson.7 Tell whether the shaded figure is a dilation of the nonshaded figure.... The vertices of a figure are given. Draw the figure and its image after a dilation with the given scale factor. Identif the tpe of dilation.. A(,, ) B(,, ) C(, ; ) k = 5. ( ) ( ) ( ) ( ) D,, E,8, F 8,8, G 8,; k = A rectangle is dilated using a scale factor of 6. The image is then dilated using a scale factor of. What scale factor could ou use to dilate the original rectangle to get the final rectangle? Eplain. 7 Copright Big Ideas Learning, LLC
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