Question

A circle has circumference 27 cm. What is the area of the circle? Use 3.14 for .

Answer 1

Circumference = 2πr = 27 cm

= 2 × 3.14 × r = 27

= 3.14 × r = 27/2

so, r = $\frac{27}{2}$ × $\frac{1}{3.14}$ = 4.2 cm