The kennel owner plans to construct a fenced circular dog exercise area. With a diameter of 18 feet, how many feet of fencing will be required for this enclosed space?

Answer 1

circumference = pid= pi x diameter= about 3.141593 x 18'

= about 56.5486776 feet

= about 56.55 ft.

sometimes they use just 3.14 as an approximation for pi, then 3.14(18)=56.52

but 56.55 is more accurate, for 2 decimal places