Question

On a circular playground, the distance from its center to the edge of the playground is 36 feet. What is the approximate circumference of the playground?

Answer 1

The distance from the center of the circle to the edge is the radius (r) which is given to be 36 feet. The formula for circumference is:
$C = 2 \pi r$
Plug in r = 36 to the formula to get:
$C = 2 \pi (36) = 72 \pi$
Therefore, the circumference is 72pi.