yes. it represents a 3D figure, also known as a pyramid. Pyramid builders had to have used geometry while building, otherwise the structures would not have been able to be completed.
A square based pyramid.
A rectangular pyramid.
A pyramid
geometric echos
Yes
pyramid
a triangle
pyramid
Yes
geometric shaping or geometric figuring
It is a pyramid
A pyramid has the solid quadrilateral pyramid solid shape.However there are also pyramids with geometrical polyhedra/platonic solid shapes of tetrahedron.