Question

Find the area of a circle with a circumference of 31.4 units.
help me please

Answer 1

Area = 78.5

Explanation:

31.4 = 2 x pi X r

r = 31.4/(2xpi) = 31.4(2 x 3.14) = 5

Area = pi x r^2 = 3.14 X 5^2 =3.14 x 25 = 78.5 units^2