1. Triangle Similiary
Section 7.3

3. AA Similarity
If two angles in one triangle are congruent to 2 corresponding angles in another triangle, then the triangles are similar.

4. SSS Similarity
If the measures of all sides of 2 triangles are proportional, then the triangles are similar.

5. SAS Similarity
If two sides of a triangle are proportional to the corresponding two sides of another triangle, and the included angle of each triangle is congruent, then the two triangles are similar.

6. Explain why the triangles are similar and write a similarity statement.c. b.

13. Explain why ∆ABE ~ ∆ACD, and then find CD.

14. Explain why ∆RSV ~ ∆RTU and then find RT.

15. Find x.

16. The photo shows a gable roof. AC || FG. ∆ABC ~ ∆FBG
The photo shows a gable roof. AC || FG. ∆ABC ~ ∆FBG. Find BA to the nearest tenth of a foot.

18. The triangles are similar. Find x.

19. Lesson Quiz
1. Explain why the triangles are similar and write a similarity statement.
2. Explain why the triangles are similar, then find BE and CD.