A solid whose base is a plane rectilinear figure and whose side faces are triangles, having a common vertex is called a ___
Pyramid
Prism
Cylinder
Cuboid
These solids are called pyramids
A pyramid is a polyhedron whose base is a polygon and whose lateral faces are triangles with a common vertex.
A prism is a polyhedron whose base is a polygon (of any number of sides) and lateral faces are triangles with a common vertex.
A solid whose side faces are parallelograms (rectangles) and whose ends are congruent and parallel figures is called ________.