Question

S

What is the value of x?
9
0 12 units
16
15 units
X
0 20 units
R
0 25 units

Answer 1

9514 1404 393

Answer:

12 units

Explanation:

In this geometry, all of the right triangles are similar, so corresponding sides are proportional.

short-side/short-side = long-side/long-side

9/x = x/16

x^2 = 144 . . . . cross multiply

x = 12 . . . . . . . take the square root