1. Bellwork
Write an equation of the perpendicular bisector of the segment with the given endpoints. M(1, 5), N(7, −1)

2. The Pythagorean Theorem
Section 9.1

3. What You Will Learn Use the Pythagorean Theorem.
Use the Converse of the Pythagorean Theorem.
Classify triangles.

4. Take Note

6. Using the Pythagorean Theorem (Take Note and try)
Find the value of x. Then tell whether the side lengths form a Pythagorean triple

7. Solving a Real-Life Problem
The skyscrapers shown are connected by a skywalk with support beams. Use the Pythagorean Theorem to approximate the length of each support beam.

8. Try Me

9. Take note

10. Practice

11. Take Note

12. Practice