Question

The circumference of a circle is 81.64 km what is the circles radius? use 3.14 for pi

Answer 1

12.99km

Explanation:

Using the formula

C=2(pi)(r)

Answer 2

13km

Explanation:

We can use the formula [ r = C/2π ] to solve.

r = 81.64/2(3.14)

r = 81.64/6.28

r = 13km

Best of Luck!