this isn't aldgebra D:
The volume of a rectangular prism is its cross-section area times its length.
There is not enough information. Volume cannot be measured in cm so there is no way of knowing how big the original or small prisms are. Furthermore, the small prisms could be wide and squat or thin and long.
Area of cross section * length
The volume V of a prism is the area of its base Btimes its height h.
well, they can, but they dont have to be no. :)
It depends, can you change the width and the length??
Three-dimensional ones, such as spheres, cubes, cuboids, pyramids and prisms.