Question

If the area of a circle is 121 pi cm squared, what is the circumference of the circle?

Answer 1

Answer: 69.1

.

units

Step-by-step explanation:

First, find the radius

r

of the circle. Use the formula

a

=

π

r

2

area

=

π

⋅

r

2

121

π

=

π

⋅

r

2

121

=

r

2

11

=

r