A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles, is ...

A prism has a constant cross-section throughout its length. When the cross-section is a triangle, the prism is called a triangular prism. When the cross-section is a hexagon, the prism is called a ...

This prisms are widely used in optical system, which can reflect, deviate and rotate the beam of light as well as to disperse the wave length of the light. This kind of prism is Equilateral prism.Have ...

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