1. A = B SECTION 7-1 Jim Smith JCHS

2. The Geometric Mean Between 2 Numbers ( A and B ), Is The Number That When Substituted For X Will Make This Proportion True AX = XB

3. Find the geometric mean between 4 and 9 between 4 and 9 4X = X9 X² = 36 X² = 36 X = 6 X = 6

4. Find the geometric mean between 3 and 15 3X = X15 X² = 45 X² = 45 X = 3 5 X = 3 5 X = 6.7 X = 6.7

5. 8 is the geometric mean between 2 and what number 28 = 8X 2X = 64 X = 32 X = 32

6. A B The Altitude Drawn To The Hypotenuse In A Right Triangle Divides The Hypotenuse Into 2 Parts. The Altitude Is The Geometric Mean Between The 2 Parts. Alt AAlt = Alt B

7. 8 5 X 8X = X5 X² = 40 X = 40 X = 40 X = 2 10 X = 2 10 X = 6.3 X = 6.3 Find X

8. Each Leg Is The Geometric Mean Between The Part Of The Hypotenuse Adjacent To The Leg And The Whole Hypotenuse Y Z W X YW = W Y+Z ZX X =

9. 8 5 R T 8T = T8+5 T² = 8 ( 13 ) T² = 104 T = 104 T = 104 T = 2 26 T = 2 26 T = 10.2 T = 10.2 Find T

10. 8 5 R T 5R = R5+8 R² = 5 ( 5+8 ) R² = 5 (13 ) R² = 65 R = 65 R = 65 R = 8.1 R = 8.1 Find R