1. Chapter 4 review
Corbin Miller

2. Right triangles
If a right triangle has one acute angle of 64 degrees, what must the other acute angle’s measure be?
64 degrees ?

3. Exterior angles
What is the value of x? 64 x 62

4. Exterior angles continued
What is the sum of the angle measure of x, y, and z? y z x

5. Types of triangles
What type of triangle is triangle abc? 54 95 31

6. Postulates and theorems
What theorem or postulate can you use to prove triangle abc congruent to triangle efc?

7. Proof
Given: TM is congruent and parallel to PR Prove: triangle TEM is congruent with triangle PER R T E P M

8. Answers
Slide 2: 26 degrees Slide 3: 54 degrees Slide 4: 360 degrees Slide 5: Obtuse triangle Slide 6: SAS postulate Proof on next slide

9. Proof answer
1.given
<p is congruent to <t 2.alt. int. <s theorem
<TEM is cong. to <PER 3.vert. <‘s theorem
Triangle TEM is cong AAS postulate
to triangle PER