Question

The area of a circle is 12.56 square kilometers. What is the circle's circumference

Use 3.14 for л.
Submit
kilometers

Answer 1

12.56km

Explanation:

A=πr²

12.56=3.14r²

r²=12.56/3.14

r²=4

r=2

C=2πr

C=2×3.14×2

C=12.56km