Question

Asked Oct 26, 2019

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An open-top bin is to be made from a 15-centimeter by a 40-centimeter piece of plastic by removing a square from each corner of the plastic and folding up the flaps on each side. What size square should be cut out of each corner to get a bin with the maximum volume?

Step 1

Assume that side of square which should be cut from each corner is *a*.

Given the dimension of piece of plastic is 15cm by 40 cm.

If the sides are cut from the corner in order to form an open bin, the dimension of the bin becomes,

Step 2

Compute the volume as follows.

Step 3

Obtain the first and second derivative of *V* ...

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