It is a triangular prism that would fit the given description
triangular prism
Triangular prisms and Rectangular pyramids
Triangular Prism
Triangular prism
In geometry, an icosahedron is a regular polyhedron with 20 identical equilateral triangular faces.
triangular prism
A triangular pyramid.
It is a triangular prism.
triangular prisom
A triangular prism.
Triangular prisms and Rectangular pyramids
Triangular Prism
A triangular prism, where the two ends are triangles.
A triangular prism.
Triangular prism
a cuboid * * * * * A prism, of which, a cuboid is a special case.
A skew triangular prism.