This shape is a triangular prism.
 Count the number of faces.
 How many edges does it have?
 How many vertices does it have?
 \(5\) faces
 \(9\) edges
 \(6\) vertices
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Regular polygons

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Platonic solids

There are certain words that we need to use when we describe the properties of 3D objects, such as face, base, edge and vertex.
We know that a cube has six faces, and each face is a square. All the squares are congruent (exactly the same size).
The faces of objects meet each other at an edge. A cube has twelve edges: four edges around the top face of the cube, four edges around the side faces, and four edges around the base of the cube.
The edges of a 3D object meet each other at a vertex. A cube has eight vertices: four at the top of the cube and four at the base of the cube.
This shape is a triangular prism.
This shape is a pentagonal prism.
This shape is called a cuboid or rectangular prism.
Count the number of faces, edges and vertices.
This shape is a hexagonal prism.
Count the number of faces, edges and vertices.
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Regular polygons

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Platonic solids
