Question

Find the area of a circle with diameter 18 ft.

Answer 1

81 π / 254.469004941 ft²

Explanation:

Area of circle = π × r²

Half the diameter = radius

18 ft ÷ 2 = 9 ft

9 ft = radius

Area of circle = π × 9²

Area of circle = 81π

Area of circle = 81 π / 254.469004941

Area of circle =