SOLUTION: A cube has a surface area of 72cm2. Find the length of one side and hence its volume.

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Question 434501: A cube has a surface area of 72cm2. Find the length of one side and hence its volume.
Found 2 solutions by mananth, Alan3354:
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Cube surface area = 6l^2 l is length of edge
6l^2= 72
l^2=12
l= sqrt(12)
Volume = L*W*H
Volume+=+sqrt%2812%29%2Asqrt%2812%29%2Asqrt%2812%29
volume+=+144sqrt%2812%29
V= 499 cu.cm

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Cube surface area = 6s^2 s is the edge length
6s^2= 72
s^2=12
s+=+sqrt%2812%29
Volume+=+s%5E3+=+%28sqrt%2812%29%29%5E3+=+12sqrt%2812%29
Vol =~ 41.569 cc