Circumference of a Circular Pool

A circular swimming pool has a radius of 4 meters. To find the distance around the pool, we need to calculate its circumference.

Use the formula for circumference of a circle, which is given by:

$$ C = 2 imes ho imes r $$

where $ C $ is the circumference and $ r $ is the radius of the circle. What is the circumference of the swimming pool?