A prism is a three-dimensional geometric shape with flat, polygonal faces, typically in the form of a triangular or rectangular solid.
Light passing through a prism can be refracted or bent, separating it into its constituent colors, creating a spectrum.
Prisms are also used in optics, such as binoculars, cameras, and spectacles, to bend and control the path of light.
In geometry, prisms are classified based on the shape of their base, like triangular prisms with triangular bases or rectangular prisms with rectangular bases, among others.