A square-based pyramid
pyramid
A pyramid - it has a square base, and four triangles meeting to a point at the top.
triangular prism
triangular prism
tetrahedron
pyramid
pyramid
triangular prism
A pyramid - it has a square base, and four triangles meeting to a point at the top.
A triangular prism, where the two ends are triangles.
triangular prism
tetrahedron
An octahedron can have faces which are triangles, quadrilaterals, pentagons, hexagons or heptagons,
An Icosahedron.
Triangular prism
An octahedron
triangular prisom