# Thread: Function for V

1. ## Function for V

A rectangular piece of cardboard has dimensions 20cm by 36cm. Four squares each x cm by x cm are cut from the corners. An open box is formed by folding up the flaps. Find a function for V, which gives the volume of the box in terms of x, and state the domain for the function.
Thanks.

2. You should know that a rectangular prism has volume $\displaystyle V = lwh$.

What are the length, width and height going to be?

3. Originally Posted by juliacoolness
A rectangular piece of cardboard has dimensions 20cm by 36cm. Four squares each x cm by x cm are cut from the corners. An open box is formed by folding up the flaps. Find a function for V, which gives the volume of the box in terms of x, and state the domain for the function.
Thanks.
If the cardboard originally is 36 cm long and an x-centimeter square is cut from each end, what length is left? If the cardboard originally is 20 cm wide and an x centimeter square is cut from each end, what width is left? What is the height of the box?