tetrahedron ~ A Maths Dictionary for Kids Quick Reference by Jenny Eather

Quick Reference ~ A maths Dictionary for Kids by Jenny Eather

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tetrahedron • a tetrahedron is a polyhedron with 4 triangular faces, in other words, a triangular pyramid. • a regular tetrahedron is one of the Platonic solids having 4 congruent faces that are equilateral triangles with 3 faces meeting at each vertex. EXAMPLES:

tetrahedron

• a tetrahedron is a polyhedron with 4 triangular faces,
in other words, a triangular pyramid.
• a regular tetrahedron is one of the Platonic solids having
4 congruent faces that are equilateral triangles with
3 faces meeting at each vertex.

EXAMPLES:
tetrahedron
• a three-dimensional polyhedron with four congruent triangular faces
• one of the five Platonic Solids.


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