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Prism

2:35

ABC Zoom - Refraction: why glass prisms bend and separate light

1:34

Prisms in Physics : Physics & Science Lessons

3:12

Prism

3:50

How to Make a Triangular Prism

2:44

How a Prism Works to Make Rainbow Colors

In geometry, a prism is a polyhedron comprising an n-sided polygonal base, a second base which is a translated copy of the first, and n other faces joining corresponding sides of the two bases. All cross-sections parallel to the bases are translations of the bases. Prisms are named for their bases, so a prism with a pentagonal base is called a pentagonal prism. The prisms are a subclass of the prismatoids.
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    • General, right and uniform prisms 

    • Volume 

    • Surface area 

    • Symmetry 

    • Prismatic polytope 

    • Twisted prism 

    • Frustum 

    • Star prism