1. 3.2 Theorems about Perpendicular Lines

2. Open to text p. 114 Complete the Geo-Activity

3. Theorem 3.1  all right angles are congruent  If m<A = 90 and m<B= 90, then

4. Theorem 3.2  If two lines are perpendicular, then they intersect to form four right angles.

5. Example 1

6. You Try It

7. Theorem 3.3  If two lines intersect to form adjacent congruent angles, then the lines are perpendicular.

8. Theorem 3.4 IIf two sides of adjacent acute angles are perpendicular, then the angles are complementary.

9. Example 2

10. Example 3

11. You Try It

12. Partner Practice  Text p. 117 #s 2-14 all

13. HOMEWORK  text p. 118 #s 15-26 all