SOLUTION: to isolate or solve for r in the equation SA=2pier^2=2pierh *pie is the pie sign

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Question 868259: to isolate or solve for r in the equation SA=2pier^2=2pierh
*pie is the pie sign
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
to isolate or solve for r in the equation SA=2pier^2=2pierh
*pie is the pie sign
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Too many equal signs.
pi is the Greek letter pi, not the dessert, pie
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For a cylinder:
SA=2pi%2Ar%5E2+%2B+2pi%2Arh
2pi%2Ar%5E2+%2B+2pi%2Arh+-+SA+=+0
r = %28-2pi%2Ah+%2B-+sqrt%284pi%5E2h%5E2+%2B+SA%2A8pi%29%29%2F%284pi%29