Question

A rotating sprinkler sprays a steady stream of water that is 9 feet long. If

the sprinkler makes a full rotation, what is the approximate circumference
of the circular area it sprays with water?*

A.18 feet
B.30 feet
C.55 feet
D.250 feet

Answer 1

r = 9 feet

C = 2πr ≈ 2(3.14)9 = 56.52

Answer: C

Answer 2

C

Explanation:

circumference= 2*pi*r

2*pi*9=56.52