A
plane or curved surface in a solid that is bounded by
edges.
Examples
- This polyhedron has 6 faces and 12 edges.
![](https://www.netmaths.net/medias_collection/Illustrations/geometric solids/prism_rectangular_base_model1.svg)
- This hexagonal prism has 8 plane faces.
![](https://www.netmaths.net/medias_collection/Illustrations/geometric solids/hexagonal_prism_03.svg)
- A cone has 1 plane surface and 1 curved surface.
- A cylinder has 2 plane surfaces and 1 curved surface.
- A ball has 1 curved surface.