A pyramid is just a geometric shape, without restriction on the material of which it is made.
It is a pyramid
a pyramid with a hexagonal base or a septagon
A rectangular pyramid.
The geometric shape that has 1 square face and 4 triangular faces is a pyramid. A pyramid also has five vertices and eight edges. The square acts as the base for the shape on which it sits.
Since a pyramid is a geometric shape, the answer should be apparent.
A cuboid or a pyramid with a heptagonal base are two possibilities.