Question

I need help with what to formula to use for radius

Answer 1

1.99 meters

Explanation:

The equation for a circumference is
`C=2\pi r`, therefore if the circumference is 12.56 meters:

`12.56=2\pi r`

`r=(12.56)/(2(3.14) ) =1.99` meters

Answer 2

Your answer should be 1.99