Question

What is the length of the third side of the window frame below?

A. 10 inches
B. 12 inches
C. 16 inches
D. 20 inches

Answer 1

The answer is, D. 20 inches

hope this helps :)

Answer 2

D. 20 inches

Explanation:

pythagorean theorem: a^2 + b^2 = c^2

the hypotenuse, the longest side, is equal to c.

plug in.

48^2 + b^2 = 52^2

2304 + b^2 = 2704

2304 - 2304 +b^2 = 2704 - 2304

b^2 = 400

sqrt(b^2) = sqrt(400)

b = 20