How do I solve this? I don't understand how I would even start this problem to solve it

Question

asked Dec 9, 2018 59.3k views

1 Answer

Larysa · Answer 1 · 2018-12-16T04:43:59+0000

check the picture below

keep in mind, the radius is half the diameter, in your picture, the diameter is 42 ft, so the radius is half that, or 21