Question 1207436
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An open box is to be constructed from a square piece of sheet metal 
by removing a square of side 1 foot from each corner and turning up the edges.
If the box is to hold 4 cubic feet, what should be the dimensions of the sheet metal?
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        M E N T A L     S O L U T I O N



<pre>
The height of the open box should be 1 foot.


Hence the area of the base of the box must be 4 ft^3 : 1 ft = 4 ft^2.


The base is the square (OBVIOUSLY) and its area is 4 ft^2.


Hence, the side of the base square is 2 feet.


It means that the original sheet of the metal is the square with the side length

    1 + 2 + 1 = 4 ft      <U>ANSWER</U>
</pre>

Solved.


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It is a &nbsp;JOKE &nbsp;ENTERTAINMENT &nbsp;Math problem for &nbsp;MENTAL &nbsp;SOLUTION.


To see many other similar solved problems with full explanations, &nbsp;look into the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/Surface-area/Making-a-box-from-a-piece-of-cardboard.lesson>Making a box from a piece of cardboard</A> 

in this site.


Read, &nbsp;enjoy, &nbsp;and learn the whole subject from there.



&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Have fun &nbsp;(&nbsp;!&nbsp;)



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The solution in the post by @josgarithetic is &nbsp;TOTALLY &nbsp;WRONG,


so you better &nbsp;IGNORE &nbsp;it, &nbsp;for safety of your mind.