Question

A local farmer is using a rotating sprinkler to water some newly planted grass. The water sprays from the sprinkler in a circular area with a 105 foot radius.

What is the approximate area, in square feet, that the rotating sprinkler sprays with water? (Use π = 3.14)


34,618 ft2


138, 500 ft2


440 ft2


660 ft2

Answer 1

So this time, multiply 105 by 2 to get the diameter. You will have it as 210 ft. Multiply this by 3.14 and the circumference is 659.4$\pi$ft.