Question

The circular hot tub has an area of 64 pi square meters. What is itsdiameter?

Answer 1

Area of a circle: pi ( radius) ^2

Replacing with the values given :

64pi = pi(r)^2

Solve for r (radius)

64pi/pi = r^2

64=r^2

√64 = r

8 = r

Since diameter = 2 x radius

D= 2(8)

D= 16

Diameter = 16 meters.