SOLUTION: How do you find the surface area of a rectangular prisam?

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Question 1094903: How do you find the surface area of a rectangular prisam?
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!

If the length, width, and height are l, w, and h, then there are two rectangular faces with dimensions l and w...
2%2Al%2Aw
two with dimensions l and h...
2%2Al%2Ah
and two with dimensions w and h...
2%2Aw%2Ah

The total surface are of all six faces is
2lw%2B2lh%2B2wh or 2%28lw%2Blh%2Bwh%29