the word used to describe a 3D object with lateral faces that are slanted

Question

what is the word

Answer 1

Keywords in problem statement are "lateral faces" and "slanted."  Let's 

look at the solids' attributes.  Solids we can choose from are....

 

prism........lateral faces (which are rectangles) are parallel, not slanted.

pyramid....lateral faces (which are triangles) are slanted.

cylinder.....has no lateral faces, only circular bases and curved surface,

                       generated by rotating a rectangle about one edge.

cone.........has no lateral faces, only flat base and curved surface, 

                       generated by rotating a triangle about one of its legs.

 

A pyramid's attributes fit the prob parameters.

Now try to find images of each of the solids mentioned.