Question

Find the circumference of a circle whose area is 60 pi cm2

Answer 1

Answer:

14.04 cm

Step-by-step explanation:

Since area of a circle = πr²

and area of the circle is 60π cm²

so 60π = π r²

60 = r²

r = √60

= $\sqrt[4]{5}$

Now formula to find circumference of the circle is

circumference = 2 π r

                        = 2π ×  $\sqrt[4]{5}$

                        = 2 × ( 3.14 ) (  $\sqrt[4]{5}$ )

                       = 14.04 cm

Therefore, 14.04 cm is the circumference of the circle.