Find the geometric mean between: 1.6 and 20 2.15 and 20 Geometric Mean x is the geometric mean between a and b. a x x b = Warm-up!!

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Presentation transcript:

Find the geometric mean between: 1.6 and and 20 Geometric Mean x is the geometric mean between a and b. a x x b = Warm-up!!

6 and 20 x 2 = 120 x  11.0

15 and 20 x 2 = 300 x  14.1

The altitude to the hypotenuse of a right triangle divides the triangle into two triangles that are similar to the original and to each other.

A C D E A C E medium A CD large A DE small h k r g m r m h g + k h k r g m or

Continue for practice problems

y 2 = 72 x 2 

x y 3 4 D A B C y 2 = 12 x 2 = 28

4x = 4y 2 = 20

20x = 100 y 2 = x y