Oh. I thought you meant 3-6, not questions 3 through 6. Sorry :(
A "cross section" is basically the two-dimensional face that you get when you cut a three-dimensional figure a certain way. For example, imagine you're buttering your bread. When you cut a pat of butter off, what shape is left on the butter? A square!
So, imagine cutting a ball in half. What shape is left? A circle!
Answer: circle
Answer: .0142%
Step-by-step explanation: