no a tetrahedron actually has 5 sides and 5 faces
Probably the word should be "vertices" - the answer is 4. See http://en.wikipedia.org/wiki/Tetrahedron.
3 faces and 8 corners
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tetrahedron
Four triangular faces.
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Tetrahedron
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tetrahedron
there are no corners and there are 3 faces
A tetrahedron is a triangular based pyramid that has 4 faces none of which are parallel it also has 6 edges and 4 vertices
A tetrahedron.