SOLUTION: Please help me answer this question A thin metal rod 8 ft long is to be bent into a circular hoop. Find the radius of this hoop to the nearest tenth of an inch.

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Question 388875: Please help me answer this question


A thin metal rod 8 ft long is to be bent into a circular hoop. Find the radius of this hoop to the nearest tenth of an inch.

Answer by haileytucki(390) About Me  (Show Source):
You can put this solution on YOUR website!
radius= perimeter/2*pi
=8/2*pi

(8)/(2)*`
Reduce the expression (8)/(2) by removing a factor of 2 from the numerator and denominator.
4*`
Multiply 4 by ` to get 4`.
4`
The approximate value of (8)/(2)*` is 12.56637.
12.56637= to the nearest tenth= 12.6
Answer= 12.6