Name _____________________________________ Class _________ Date ________________
 Checkpoint Quiz 2
Use with Lessons 4-4 through 4-6.
1. List the isosceles triangles in the diagram.
2. Why are these triangles congruent?
3. Explain why
.
4. In the diagram,
by SAS. What other pairs
of sides and angles can you conclude are congruent by
CPCTC?
5. Complete the Plan for Proof.
Given:
bisects
Plan: Because
and
Prove:
is an isosceles triangle.
bisects
and
and
by a. __?__
by b. __?__ Property. So,
by
c. __?__ Theorem and
by d. __?__. Hence,
is an isosceles triangle by e. __?__.