A triangular pyramid has 5 planes. * * * * * In fact, a triangular pyramid is also known as a tetrahedron and as its name suggests, it has 4 plane faces.
A triangular based pyramid has no lines of symmetry. However, if each of the non-base triangular sides are equal it will have 3 planes of symmetry. If the base triangle is also equal, it will have 6 planes of symmetry.
Five
A triangular based pyramid has 4 vertices.
a triangular based pyramid has 4 faces.
A tetrahedron is a triangular based pyramid that has 4 faces, 6 edges and 4 vertices
five A triangular based prism has 5 A triangular based pyramid has 4 and there is no such thing as a triangular based prism pyramid - unless you mean a truncated pyramid (or a frustum) which is essentially a prism.
A triangular based pyramid would have 4 corners; three for the triangular base and one for the peak. A pyramid has twice as many edges as sides in its base; thus a triangular pyramid has 2 × 3 = 6 edges. A triangular based pyramid is called a tetrahedron.
A triangular based pyramid has 6 edges and 4 vertices.
A triangular based pyramid has 4 vertices, 6 edges and 4 faces
A triangular based pyramid which is a tetrahedron has 4 faces, 6 edges and 4 vertices
A triangular-based pyramid has six edges: three in the base triangle and three from there to the apex.