Question

find the circumference and area of a circle of radius 15 CM

Answer 1

circumference of circle= 2πr
r= 15cm
circumference= 2*22/7 *15
=660/7
= 94.2 cm
area =πr^2
= 22/7 15*15
=22*225/7
=707.14cm2

Answer 2

r = 15cm
Circumference = 2πr =2 X 22/7 X 15 =94.28cm
Area = πr^2 = 22/7 X (15)^2 = 22/7 X 225
= 707.14 cm^2