Posted by **Karen** on Tuesday, March 6, 2012 at 9:14pm.

If the volume of a rectangular solid is 80 cu inches, what dimensions will give the least amount of surface area?

- 6th grade math -
**bobpursley**, Tuesday, March 6, 2012 at 9:19pm
a square will give the least surface area.

s^3=80

side length= cuberoot 80

- 6th grade math -
**Karen**, Tuesday, March 6, 2012 at 9:23pm
not a cube, as they have not done cube roots yet. I know the answer, which would be 4x4x5, but looking for a pattern or easy way to explain it.

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