This document discusses similar polygons and how to identify them. Two polygons are similar if corresponding angles are equal and corresponding sides are proportional. To determine if polygons are similar, we check if corresponding angles are equal and corresponding sides are proportional. Examples are provided to practice identifying similar polygons and finding missing side lengths using side proportionality. Homework problems from the textbook are assigned.

1. 7.2 Similar Polygons
Objective: Identify similar polygons and
find missing sides of polygons.
Standard: Geometry 4.0

2. Similar:
Two figures that have
the same _______ but
not necessarily the
same _______.

3. How do we know if two
shapes are similar?
Two polygons are similar if …
1) Corresponding angles are ___________
2) Corresponding sides are ____________
or

4. Ex. 1) Are the polygons similar?
a)
b)

5. Ex. 2) Are the triangles similar? White
Board!

7. Similarity Statements:
1) Angles are _________
2) Sides are __________

8. Solving Similar Shapes
1) Angles are _________
2) Sides are __________
Ex. 3)
a)
b)

9. White Boards!
∆WXZ ∼ ∆DFG
Find:
m∠Z=___
m∠D=___
FG=____
DG=____

10. Homework:
#2 p. 375
#1-29 (odd),
57-62 (all)