Yes, it is.
No, tetrahedron is a polyhedron with four faces.
No, tetrahedron is a polyhedron with four faces.
Tetrahedron
It is a tetrahedron.
Tetrahedron
A tetrahedron
Tetrahedron
A tetrahedron.
Yes: the tetrahedron.
A tetrahedron is a four sided polyhedron. Each face is a triangle. If it is a regular tetrahedron, then each face is an equilateral triangle.
A tetrahedron is a polyhedron with four sides (tetra means 4) that are triangles. So one fourth of a tetrahedron is a triangle.
Square Based PyramidTetrahedron: A tetrahedron is a polyhedron made of 4 triangles. A "regular tetrahedron" is a tetrahedron where the triangles are equilateral. (A polyhedron is any 3 dimentional figure made of flat surfaces and straight lines.)