Question

The difference between the circumference and radius of a circle is 37cm. Using π = 22/7, find the circumference of the circle.

Answer 1

Circumference of a circle – Radius = 37 cm (given)

We know that, Circumference of a circle = 2πr (where r = radius)

2πr – r = 37

2 x 22/7 x r – r = 37

(37/7)r = 37

r = 7 cm

Therefore, circumference of a circle = 2πr = 2 x 22/7 x 7 = 44 cm