1. Warm Up

2. Announcements Warm Ups Due Tomorrow HW Due Friday Test Monday
9 Weeks Quiz Tuesday

3. Geometric Mean
For any two positive numbers a and b, the geometric mean of a and b is the positive number x such that a/x=x/b

4. Example 1
What is the Geometric Mean of 6 and 15?

5. Geometric Mean

6. Example 2
What is the value of x? Write your answer in simplest radical form.

7. Corollary 2 to Theorem 9-3
the length of each leg of a right triangle is the geometric mean of the length of the hypotenuse and the length of the segment of the hypotenuse adjacent to the leg.

8. Example 3
What is the value of x?

9. Homework Pg. 155-156 #1, 4-7, 9-11 Congruent Triangles WS
Triangle Proofs WS
Pg. 172 #1-4, 6-8, 11-14
Pg. 403 #4-10, 26-29