Use the figure to find the approximate perimeter of RSTU.

A) 72.5 in.

B) 73.6 in.

C) 72.0 in.

D) 73.0 in.

E) 71.8 in.

B

you have to find the length of the sides first since its not given,

use a^2+b^2 = c^2 to find the side you need

from the picture, you have a right triangle so, 15^2 + 5^2 = c^2

solve for c = 5 sq root(10)

Perimeter is the sum of the 4 sides: 2a+2b= [2*5sq root(10)] + [2*(16+5)]

equals 73.6