1. Splash Screen

2. Lesson Menu Five-Minute Check (over Lesson 9–6) Main Idea and Vocabulary Example 1:Identify Similar and Congruent Figures Example 2:Identify Similar and Congruent Figures Example 3:Identify Corresponding Sides Example 4:Identify Similar Figures

3. Main Idea/Vocabulary similar figures congruent figures corresponding sides Identify similar and congruent figures.

4. Example 1 Identify Similar and Congruent Figures Tell whether the pair of figures is similar, congruent, or neither. The figures have the same shape but not the same size. Answer: They are similar.

5. 1.A 2.B 3.C Example 1 A.similar B.congruent C.neither Tell whether the pair of figures is similar, congruent, or neither.

6. Example 2 Identify Similar and Congruent Figures Tell whether the pair of figures is similar, congruent, or neither. Answer: The figures are neither similar nor congruent. The figures have neither the same shape nor the same size.

7. 1.A 2.B 3.C Example 2 A.similar B.congruent C.neither Tell whether the pair of figures is similar, congruent, or neither.

8. Example 3 Identify Corresponding Sides SKATEBOARDING RAMPS The two ramps shown are congruent. What side of triangle QRS corresponds to AC? Corresponding sides represent the same side of similar figures. Answer: So, QS corresponds to AC.

9. 1.A 2.B 3.C 4.D Example 3 FLOOR TILES The two floor tiles shown are congruent. What side of rectangle ABCD corresponds to FG? A.AB B.BC C.CD D.DA

10. Example 4 Which rectangle below is similar to rectangle EFGH? Identify Similar Figures

11. Example 4 Examine the ratios of corresponding sides to see if they have a constant ratio. Answer: So, rectangle WXYZ is similar to rectangle EFGH. Identify Similar Figures Rectangle ABCDRectangle MNOPRectangle WXYZ

12. 1.A 2.B 3.C 4.D Example 4 Which triangle below is similar to triangle ABC? A.B. C.D.

13. End of the Lesson

14. Resources Five-Minute Check (over Lesson 9–6) Image Bank Math Tools Estimating Angles Angles in Triangles

15. 1.A 2.B 3.C 4.D Five Minute Check 1 A.6 ways B.8 ways C.9 ways D.10 ways. Use the draw a diagram strategy to solve. DRIVING The downtown section of a city is rectangular, 5 blocks by 3 blocks. How many ways are there to drive from one corner of downtown to the opposite corner, if you must make exactly two turns? (over Lesson 9-6)

16. 1.A 2.B 3.C 4.D Five Minute Check 2 (over Lesson 9-6) A.10 streamers B.12 streamers C.15 streamers D.20 streamers Use the draw a diagram strategy to solve. DECORATIONS A gazebo is in the shape of a hexagon, a six-sided figure. For a party, streamers are hung from each of the six top corners of the gazebo to every other top corner. How many streamers are there in all?

17. 1.A 2.B 3.C 4.D Five Minute Check 3 (over Lesson 9-6) A.4 B. 5 C.6 D. 7 A new school building is being designed in which each classroom will have one wall of windows. The windows will be along a wall that is 55 feet long. The windows are each 4 feet long, and will be placed 3 feet apart and 8 feet from the end of the wall. How many windows will be in each classroom?

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