An official NHL hockey puck is shaped like a cylinder with a diameter of 3 inches and a volume of 7.1 cubic inches. What is the height of the hockey puck?

H=1in

You would need to use the equation V = pie times radius squared times height. Since it gives you the diameter, you would need to divide 3 by 2 to get 1.5. So now you would plug in 7.1=pie*1.5 (squared) * h

Now solve the equation to get 1in.

And you can check this answer by using this same equation to plug in pi*1.5 (squared) * 1 and you will get 7.1 as your volume.