SOLUTION: A=PI*r2 if A=113.04sq ft and PI*=3.14 what is r

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Question 54763: A=PI*r2 if A=113.04sq ft and PI*=3.14 what is r
Found 3 solutions by psbhowmick, tutorcecilia, funmath:
Answer by psbhowmick(878) About Me  (Show Source):
You can put this solution on YOUR website!
A+=+pi%2Ar%5E2
r%5E2+=+A%2Fpi
r+=+sqrt%28A%2Fpi%29
Here A = 113.04 sq.ft. Also pi+=+3.14.
So, r+=+sqrt%28113.04%2F3.14%29
or r+=+6
Thus reqd. value of r is 6 ft.

Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
A=PI*r2
113.04=(3.1415)*r^2 [Is the "r" value raised to the 2nd power?]
113.04/3.1415=r^2
35.9828=r^2
sqrt(35.9828)=sqrt(r^2)
5.998=r
.
Check by plugging all of the variables back into the original equation.

Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
A=pi%2Ar%5E2 if A=113.04sq ft and pi=3.14 what is r
Solve the formula for r and plug in your numbers.
A%2F%28pi%29=%28pi%29%2Ar%5E2%2F%28pi%29
A%2F%28pi%29=cross%28%28pi%29%29%2Ar%5E2%2Fcross%28%28pi%29%29
A%2F%28pi%29=r%5E2
sqrt%28A%2F%28pi%29%29=sqrt%28r%5E2%29 (you don't need to use + or - because you can't have a negative radius.)
r=sqrt%28A%2F%28pi%29%29 A=113.04 ft^2 and %28pi%29=3.14
r=sqrt%28113.04ft%5E2%2F%283.14%29%29
r=sqrt%2836ft%5E2%29
r=sqrt%28%286ft%29%286ft%29%29
highlight%28r=6+ft%29
Happy Calculating!!!