A pyramid.
rectangular pyramid
A rectangular-based pyramid.
It is a three dimensional shape bounded by polygonal faces (a polyhedron) which has a uniform triangular cross section, parallel triangular bases, and the remaining faces are rectangular.
A 3-dimensional shape. 5 plane faces: 3 rectangular, 2 triangular. Triangular faces parallel to one another. 6 vertices 9 edges
triangular prism
a triangular prism
A Pyramid ( As in Egypt).
A triangular dipyramid.
A triangular pyramid.
A shape with 5 sides is a pentagon.However, the term face is only applied to three-dimensional forms,and a shape (solid) with 5 faces is a pentahedron.There are no regular pentahedrons. The two forms are the square pyramid and the triangular prism. The former has 4 triangular sides and a square or rectangular base; the latter has 3 rectangular (or square) faces and two triangular ends.
A triangular prism has two triangular faces, a rectangular prism does not have any.
triangular prism