There is a rectangular cardboard 8 cm in length and 4 cm in width. A square is cut from each corner and folded into a rectangular paperless box 1 cm in height What is the volume of the box in cubic centimeter?

There is a rectangular cardboard 8 cm in length and 4 cm in width. A square is cut from each corner and folded into a rectangular paperless box 1 cm in height What is the volume of the box in cubic centimeter?


First of all, the height of the cube is the minus side length of the square = 1cm
That is to say, subtract two 1cm (one on each side) from each of the four sides of the rectangle
That is to say, the length of the cube is 8-1-1 = 6
Width = 4-1-1 = 2
So volume = (8-1-1) (4-1-1) * 1 = 12