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OpenStudy (anonymous):
Confused with this question? I have to find the surface area. http://i.imgur.com/A20kdqb.png But every time I plug in what I have for the formula it gives me this: 2148.849 which isn't an option.
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ganeshie8 (ganeshie8):
looks you're using r = 19, which is not the radius.
OpenStudy (anonymous):
Mkay, then how do I find the radius?
ganeshie8 (ganeshie8):
19 is the diameter. radius = 19/2
OpenStudy (anonymous):
AH. Thank you! (:
ganeshie8 (ganeshie8):
np :)
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