Question

The area of a circle is 75.46cm square. Find its circumference.

Answer 1

hope this will help you..

Answer 2

area = 75.46 cm²

πr² = 75.46

22/7 x r² = 75.46

r² = 24.01

r = 4.9cm

circumference = 2πr =2 x 22/7 x 4.9 = 30.8 cm