Q:

# What 3-D shape has four faces?

A:

There are four triangular faces on a tetrahedron. A face describes an individual surface on an object. On the tetrahedron, people can only see three of the four faces.

## Keep Learning

Credit: turinboy CC-BY 2.0

To create a tetrahedron, three triangles come together and they meet at a vertex. The point where at least two straight lines come together is the vertex. When analyzing the ordinary convex polyhedra, the tetrahedron is the simplest of all of them. It is also the only one with less than five faces. It is a type of pyramid with triangular faces that come together at a common point and it has a flat polygon base.

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## Related Questions

• A:

A tetrahedron is a three-dimensional shape that contains four vertices, four faces and six edges. This Platonic solid is classified as a polyhedron, specifically a regular convex polyhedron. This indicates that all the four faces of a tetrahedron are equal in shape and size, with the same number of surfaces joined at each vertex.

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• A:

A tetrahedron is a four-faced polyhedron, or three-dimensional shape, created with triangles. The triangles in a tetrahedron are usually equilateral. To make a tetrahedron, you need paper, scissors, glue and an instrument, such as a protractor, to measure the sides and angles.

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• A:

A square is a two-dimensional shape that does not have a face, but a square is one of the faces of a cube. Faces are associated with solid figures, such as cylinders, cubes and pyramids. Two-dimensional shapes have breadth and width, but they do not have thickness.