Pyramid with a square base. One square side on the bottom and four triangles meeting at a point on the top.
A rectangular pyramid (four-sided base) has 5 faces and 5 vertices.
A square based pyramid
Pyramid
A solid figure with twenty faces is called an Icosahedron.
Many solid shapes could have 6 faces, but the most common such shape, with 6 equal faces, is the cube.
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a pyramid
A rectangular pyramid (four-sided base) has 5 faces and 5 vertices.
a rectangular pyramid rectangular base and 4 triangular sides = 5 faces
You are a square based pyramid that has 5 faces, 8 edges and 5 vertices.
A square based pyramid
square pyrimad
A polyhedron is any 3D solid (such as a cube) - therefore, it can have any number of faces.
Despite the blind answer of many uneducated users of this site, a pentagon is 2 dimensional with 5 SIDES, thus not a solid figure. A pentahedron, though, is a solid figure of five FACES. PENTAHEDRON
Pyramid
square pyramid rectangular prism
The Pyramid