1. Bellwork Do the following problem on a ½ sheet of paper and turn in.
The ratios of three angles in a triangle are 8:6:4. Find the value of x and classify the triangle by sides and angles.

2. 7.2 Two Proof Oriented Triangle Theorems
Students will be able to apply the AAS and No Choice Theorems.

3. No Choice Theorem—Toolbox!
Prove: If two angles of one triangle are congruent to two angles of another triangle, then the third angles are congruent.
An Algebraic Proof:

4. Example 1
Given:
Prove: VBYZ is a parallelogram.

5. Example 2
Given: O is the center
Prove:

6. Homework
pg. 304 #3, 4, 6, 9, 10, 14, 16

7. D B C
Skip A
skip B A D C
C (repeat)