Lisa B.
asked • 04/21/13A right rectangular prism has a total surface are of 512. If all of the edges are congruent, find the length of one of them
Help! I don't know how to start!
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1 Expert Answer
Robert J. answered • 04/21/13
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4.6
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Certified High School AP Calculus and Physics Teacher
Since all the edges are congruent, this prism must be a cube.
There are 6 faces in a cube, each of which has an area of 512/6, and thus an edge of sqrt(512/6).
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Robert J.
9.2376 is better. The length of an edge can be a decimal.
04/21/13