Download 5.2 Congruent Polygons

5.2 Congruent Polygons
OBJ: Students will be able to identify and use
corresponding parts and use the Third Angles
Theorem.
Do Now- Solve for the missing
Value
2x+3
75
55
93
5x
4x+6
Definitions
Corresponding Part: Maps each part of
a triangle to another triangle.
 Corresponding Sides: sides of different
polygons that are congruent.
 Corresponding Angles: angles of
different polygons that are congruent.

Example 1
Example 2
Example 3
Properties of Triangle Congruence

Reflexive:

Symmetric:

Transitive:
Third Angle Theorem

If two angles of one triangle are
congruent to two angles of another
triangle, then the third angles are also
congruent.
Example 4
Example 5
HW

Pg. 243 3-10,13-14