Ok so you need to multiply the length, width, and height together for each one. Bill: 8 x 20 x 6 = 960 Martin: 4 x 15 x 16 = 960 So Bill is right, they both have the same volume.
Bill is correct because to find the volume of a rectangular prism you have to find the area of the base which is length times width and then you have to multiply it by the height. I did that with the two boxes of makers and the both equal 960 cm cubed, which means bill was right.
The sum of length and width is half the perimeter, so is (70 in)/2 = 35 in. Since this is the sum of length and width, if we add 5 inches, it will be twice the length. That is ...
