A pyramid can have ______ base and triangles from the base which meet at one point.
Triangle
Square
Any
Pentagon
The base of a pyramid can be a triangle, quadrilateral, or any polygon shape, meaning that a pyramid has at least three outer triangular surfaces.
A pyramid is a solid figure,whose base is
(a) only a triangle
(b) only a square
(c) only a rectangle
(d) any polygon