A triangular based pyramid.
A tetrahedron has four triangular faces, four vertex corners, and six straight edges.
The difference beween a Triangular Prism, and a Triangular Pyramid (Tetrahedron) Prism Pyramid Five sides Four sides ---------> 1 less than the Prism Six corners Four corners -------> 2 less than the Prism Nine edges Six edges ----------> 3 less than the Prism So there you go. Thanks for reading
four sides and four corners
A tetrahedron.
Four. Three corners to the base and the apex.
Nothing.A triangle has three corners and three sides. The prefix "tri-" means three so it cannot gave six corners nor six sides.
A square pyramid has a square base and four triangular sides.
maybe it has 8 edges............ . Edges - as in corners? I make it nine. Edges as in faces? I make it five. A triangular prism has 5 edges * * * * * Edges are not corners! They are the "lines" where two faces meet. There are 9 edges in a triangular prism.
The pyramids have triangular sides but four sides.
Four - as a square has four sides, there are then four triangular sides (meeting at the top of the pyramid).
Four.