By its very nature of being a triangle, and a 2D shape, a triangle cannot have four plane faces. However, a tetrahedron is a polyhedron made up of four triangular faces.
four triangle faces.
pyramid
A polyhedron (solid shape formed by plane faces) with four faces is called a tetrahedron.
a square. duuh. * * * * * duuh is correct! A square has 4 identical sides or 4 identical angles but not 4 identical faces! A shape with four identical plane faces is a regular tetrahedron or a triangle based pyramid.
triangle based pyramids
Tetrahedron
four triangle faces.
It is a squared based pyramid that fits the given description.
Triangle
No, a triangle does not have three faces; it is a two-dimensional shape with three sides and three angles. In three-dimensional geometry, the term "face" refers to the flat surfaces of a solid object, such as a tetrahedron, which has four triangular faces. A triangle itself exists only in a plane and does not have any volume or faces like a three-dimensional shape.
pyramid
four
Four.
four
Four
Pyramid
A polyhedron (solid shape formed by plane faces) with four faces is called a tetrahedron.