SOLUTION: I am 72 and should know how to solve this. Very easy but having a senior moment. I need to know the radius. The circumference is exactly 24 feet. I am trying to put a metal edg

Question 1076239: I am 72 and should know how to solve this. Very easy but having a senior moment.
I need to know the radius. The circumference is exactly 24 feet. I am trying to put a metal edge around a tree and my edging's length is 24 feet. So I need to know the radius.
Found 2 solutions by jorel1380, addingup:
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
Circumference=2πr
Circ./2π=r
r=24/2π ft.
=12/π ft.
=12/3.14159
=3.8197186 ft. ☺☺☺☺
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
Take the circumference and divide it by Pi. Most if not all cell phones have a calculator, if yours doesn't have a key for Pi you can use 3.1416. Then divide the result by 2. let's do it:
:
24/Pi = 7.64
7.64/2 = 3.82 or use this fraction with your measuring tape: 3 13/16
:
Good luck with your project,
John
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