SOLUTION: My son and I need help Can you tell us how to solve this problem? V=Pi r^2 h solve for r.

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Question 59544: My son and I need help
Can you tell us how to solve this problem?
V=Pi r^2 h solve for r.
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
The goal is to get the r all by itself. To get rid of the things with it you do the inverse operation to it. (If it's multiplied-divide it and if it's squared-sqrare root it.) Whatever you do to one side of the equal sign, you must do to both sides.
V=%28pi%29%2Ar%5E2%2Ah solve for r.
V%2F%28%28pi%29%2Ah%29=%28pi%29%2Ar%5E2%2Ah%2F%28%28pi%29%2Ah%29 because a/a=1
V%2F%28%28pi%29%2Ah%29=r%5E2
+/-sqrt%28V%2F%28%28pi%29%2Ah%29%29=sqrt%28r%5E2%29 because sqrt%28a%5E2%29=a
sqrt%28V%2F%28pi%2Ah%29%29=r
You can ignore the +/-, because Volume is positive.
highlight%28r=sqrt%28V%2F%28pi%2Ah%29%29%29
Happy Calculating!!!