Posted by **Z32** on Monday, June 22, 2009 at 12:58am.

If 6075 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box.

Volume=??? cubic cm

- Calculus -
**drwls**, Monday, June 22, 2009 at 6:33am
Use the same procedure explained in previous problems of this type, and show your work.

You have two variables, box base length a and height h. I will assume cutout corner square pieces are not used; other wiseyou will need a lot of tape to make sides from cut corners.

(a + 2h)^2 = 6075

The box will be made by folding up the four protruding ends of a fat looking cross, made by cutting square corners off a square that has side length a + 2h.

Volume = a^2*h

Express volume V in terms of a or h only and set the derivative with respect to the remaining variable equal to zero.

Compute the two variables and the volume

- Calculus -
**Tim**, Tuesday, April 6, 2010 at 7:51pm
im stuck

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