Question

I don't understand this question...

Which three-dimensional figure has a cross section in the shape of a trapezoid if it is sliced by a plane that is parallel to a side other than its base?
a cube
a rectangular prism
a square pyramid
a right rectangular prism

Answer 1

It is a square pyramid. If you cut vertically down the pyramid on a spot other than the top vertex, you get a trapezoid.

Answer 2

All sides of a cube are bases, and the same can be said of rectangular prisms (they have no defined base). That itself should single out an answer. Hope this helps! :D