Question

The area of a circular trampoline is 112.07 square feet. What is the radius of the trampoline? Round to the nearest hundredth.
Answer
3.37 feet
10.59 feet
5.97 feet
35.67 feet

Answer 1

use A=pi*radius^2 and solve for the radius:

A=pi*r^2
112.07 = pi*r^2

divide both sides by pi:
112.07/pi = r^2

take the square root both sides:

sqrt(112.07/pi) = r

Answer 2

i got 3.24

Answer 3

33.24

Answer 4

actually i got 18.75