precalc
posted by kari on .
"An open gift box is to be made from a square piece of material by cutting 2 centimeter squares from each corner and turning up the sides. The volume of the finished gift box is to be 200 cubic centimeters. Find the size of the original piece of material."
The sides of the box are labeled x.

Is this a closed box, or an open box?
Assuming open box.
dimension of material= ((x+2)*2+x )
d=3x+4
but x^3=200
x=cubrt 200
size oriainal material: 3cubrt200+4 along each side. 
It's open. Thanks!