1. An Experiment

2. An Experiment

3. An Experiment

4. An Experiment

5. An Experiment

6. Similar and Congruent Polygons

7. Vocabulary
Polygons are similar if they have the same shape but not necessarily the same size. A D
10 ft
6 ft
3 ft
5 ft C E F B
4 ft
8 ft

8. Vocabulary
Polygons are similar if they have the same shape but not necessarily the same size.
ABC  DEF A D
10 ft
6 ft
3 ft
5 ft C E F B
4 ft
8 ft

9. Vocabulary
Polygons are similar if they have the same shape but not necessarily the same size.
Angles: Corresponding angles are congruent. A D
10 ft
6 ft
3 ft
5 ft C E F B
4 ft
8 ft

10. Vocabulary
Polygons are similar if they have the same shape but not necessarily the same size.
Sides: Ratios of lengths of corresponding sides are equal. Side1
Side 2 A D
10 ft
6 ft
3 ft
5 ft C E F B
4 ft
8 ft

11. Similar Polygons
Are they similar?
21 m
27 m
9 m
11 m
33 m
7 m

12. Are they similar?
8 m E F
6 m A B
14 m
6 m
6 m
14 m D C
6 m H G
8 m

13. Vocabulary
Congruent Polygons are similar polygons that have the same shape and the same size. L E F O N H G M

14. Vocabulary
Congruent Polygons are similar polygons that have the same shape and the same size.
Corresponding angles are congruent L E F O
60° N
120° H G M

15. Vocabulary
Congruent Polygons are similar polygons that have the same shape and the same size.
Corresponding sides are congruent L
13 ft E F O
11 ft N H G M

16. RST  XYZ

17. FGH  JKL

18. ABCD  EFGH B E H ? ? C
135° ? G ?
75°
60° A D F

19. ABCD  EFGH Name the corresponding sides and corresponding angles. B E? ? C
135° ? G ?
75°
60° A D F

20. ABCD  EFGH Find the unknown angle measures. B E H ? ? C 135° ? G ?
75°
60° A D F

21. Finding the Ratio of Lengths
Given ABC  DEF, find the ratio of the lengths of the corresponding sides. B E
20 cm
15 cm
12 cm
16 cm D F
21 cm A C
28 cm

22. Finding the Ratio of Lengths
Given ABC  DEF, find the ratio of the lengths of the corresponding sides.
12 cm A B B
10 cm
9 cm
6 cm
15 cm A C
8 cm C

23. Checking for Similarity
A rectangular painting has a length of 48 inches and a width of 36 inches. A rectangular print of the painting has a length of 32 inches and a width of 24 inches. Are the original and the print similar figures?

24. Checking for Similarity
A rectangular painting has a length of 48 inches and a width of 36 inches. A rectangular print of the painting has a length of 32 inches and a width of 24 inches. Are the original and the print similar figures?

25. Checking for Similarity
A rectangular painting has a length of 48 inches and a width of 36 inches. A rectangular print of the painting has a length of 32 inches and a width of 24 inches. Are the original and the print similar figures?

26. Homework Assignment Workbook pp. 135-135
1-8 all
Review Concepts WS (due Wednesday)
Complete Kite Design