Teacher : What about the volume of a cylinder? Stu1 was on the right track.
Teacher : Stu1, tell me what you had for the volume of a cylinder. Not the number but the formula.
Student1: r times r times pi...
Teacher : Okay, he was on the way, he said radius times radius times pi,
Teacher : or radius squared times pi. But Holly, why is that not exactly correct?
Student2: Because it's radius times radius times pi times height
Teacher : Yeah, because if you look up here, radius times radius times pi radius squared gives us just
Teacher : the base of that cylinder, right? The area of the base.
Teacher : I want to find the volume, so we have to multiply it by height.
Teacher : I want to find the volume, so we have to multiply it by height.