A tetrahedron is a triangular based pyramid that has 4 faces, 6 edges and 4 vertices.
None normally
five
A pyramid has 5 flat surfaces, 4 for the walls and 1 for the bottom.
Five: Four sides and the base.
A triangular based pyramid (a tetrahedron) has 4 flat triangular faces, 6 edges and 4 vertices
A square base, and four triangular shaped sides equals five flat surfaces.
a pyramid with a triangular base has 4 faces. a pyramid with a square base has 5 faces.
5
A triangular pyramid is one with a triangle shaped base and triangular sides (4 sides, all of them identical), therefore it would only have 6 edges and 4 vertices There are eight edges in a triangular pyramid, and there are five vertices on a triangular pyramid. Edges are the places where two flat surfaces meet. Vertices are the places where three or more flat surfaces meet. * * * * * The sides of a triangular pyramid need not be identical.
A tetrahedron is a triangular based pyramid that has 4 faces, 6 edges and 4 vertices.
5
None normally
5
5
five
A triangular prism contains zero curved and 5 flat surfaces.