Question

Find the circumference of each circle.

Answer 1

AREA = 4π m²÷4 = 12.56 m²

12.56 m² is the circumference

of the circle

Answer 2

9514 1404 393

Answer:

4π m

Explanation:

The area is given by ...

A = πr²

Then the radius is ...

r = √(A/π) = √(4π/π) = 2 . . . . meters

The circumference is ...

C = 2πr

C = 2π(2 m) = 4π m

The circumference of the circle is 4π meters.