Question 168362
With the lid closed, a "take out" box used by a restaurant has a volume of 121 cubic inches.
Its length l equals its width w. A strip of tape is wrapped around the box to keep it closed. 
The length of the tape measures 20 inches, which is 1 inch more than the shortest distance around the box. Find the dimensions of the box.
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l = w
Nothing is said about the height; I'm going to assume its height is "w".

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A wrap-around is w+w+w+w long
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Inequality:
tape = 4w+1 inches
20 = 4w+1
19 = 4w
w = (19/4) inches
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Cheers,
Stan H.