Posted by kari on Sunday, October 30, 2011 at 7:54pm.
"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.

precalc  bobpursley, Sunday, October 30, 2011 at 8:00pm
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. 
precalc  kari, Sunday, October 30, 2011 at 8:02pm
It's open. Thanks!