# Optimal boxes - Practice

**Use the sliders in the construction to set the lengths of**

*Cut out four congruent squares from a cardboard sheet, so that the remaining part can be folded to create the box (with no top) having max volume.**base*and

*height*of the sheet. Move the

*green point*on the sheet base to modify the cutout area. If

*x*is the length of the

*side*of the cutout

*square*, what's the length of

*x*that will create a box with maximum volume?

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