1. Find the geometric mean between:
Similarity 8 Warmup
Geometric Mean
a x
x b =
x is the geometric mean between a and b.
4 and 9
3 and 6
6 and 20
15 and 20
Find the geometric mean between:

2. 4 and 9
x2 = 36
x = 6

3. 3 and 6
x2 = 18
x  4.2

4. 6 and 20
x2 = 120
x  11.0

5. 15 and 20
x2 = 300
x  14.1

7. medium large small A C D m h r g k E A C E A C D g + k g m m h h r r k
Heartbeat
Rabbit or

8. Continue for practice problems

9. x y 3 4 D A B C
y2 = 12
x2 = 28

10. y2 = 72
x2 

11. 4x = 4
y2 = 20

12. 20 10 x y
y2 = 75
20x = 100