47. 1 feet
brady is putting trim around the outside of the circular merry-go-round, so he needs to use the formula for circumference to find the amount of trim he needs to buy. the formula for the circumference of a circle is: c = dπ, where d = the measure of the diameter and π = 3.14. using the given measure of the diameter:
c = 15(3.14) = 47.1 feet
answer: to be honest im kinda confused also.