From a square sheet of paper 20 cm by 20 cm, we can make a box without a lid. We do this by cutting a square from each corner and folding up the flaps.
Will you get the same volume irrespective of the size of the squares that are cut out?
Let us cut a square of side 1 cm and prepare an open box.
The volume of the box is `18^2x1=324` cubic cm.
Let us now cut a square of side 2 cm and prepare an open box.
The volume of the box is `16^2x2=512` cubic cm.
You observe that the volume will not be the same for both.