Question

The circumference of a circle is 7pi m.

What is the area of the circle?
o 3.57pi m²
o 12.257pi m²
o 14pi m²
o 49π m²

Answer 1

2πr = 7

r = 7/(2π)

A = π(7/(2π))² = 49/(4π) = 3.57π m²