Question

The diameter of a circle is 8 ft. Find its area in terms of pi

Answer 1

d = 2r => r = d/2 = 8ft/2 = 4ft

A = π·r²

= π·(4ft)²

= 16π ft²

= 16×3.14 ft²

= 50.24 ft²

Answer 2

16π

Explanation:

Area = πr²

r - radius

r = d/2 = 8/2 =4

Area = 4²π = 16π