Question

use the geometric mean (altitude) theorem. what is the value of m?

Answer 1

Answer:

4$\sqrt{10}$

Step-by-step explanation:

m/8 = 20/m

cross-multiply:

m² = 160

m = $\sqrt{160}$ = $\sqrt{16}$ · $\sqrt{10}$  = 4$\sqrt{10}$