Question

The radius of a face-off circle on an NHL hockey
rink is 15 ft. What is its circumference?​

Answer 1

94.2ft

Explanation:

1. The formula for finding the circumstance is the diameter times pi.
2. We know the radius. To find the diameter, we double the radius, which would be 30. (2x15=30)
3. Next, we multiply 30 by pi. (30x3.14). The answer is 94.2.
4. Thus, the answer is 94.2ft.

Answer 2

Explanation:

r = 15 ft

Circumference = 2πr

=2*π*15

=30π ft