SOLUTION: 7) A circular rock garden with a diameter of 40 feet is placed in the middle of a square grass yard. If the perimeter of the yard is 100 yards, then how much area is covered by gra

Algebra ->  Surface-area -> SOLUTION: 7) A circular rock garden with a diameter of 40 feet is placed in the middle of a square grass yard. If the perimeter of the yard is 100 yards, then how much area is covered by gra      Log On


   



Question 1120502: 7) A circular rock garden with a diameter of 40 feet is placed in the middle of a square grass yard. If the perimeter of the yard is 100 yards, then how much area is covered by grass? For all calculations involving π, use π≈3.14.
a) Amount of area covered by grass, measured in square feet =
b) Amount of area covered by grass, measured in square yards =

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The square grass yard is 25 yards on a side; or 75 feet on a side.

Whole Square Region, 75%5E2 square feet

Circular Rock Garden, pi%2A%2840%2F2%29%5E2 square feet

Amount of grass area, 75%5E2-pi%2820%29%5E2 square feet