the sides of a pyramid are triangles
triangle... because pyramids are triangular therefore triangular pyramids have triangle faces
Pyramids.
The 7-letter word for a 3D shape with triangular faces is "pyramid." A pyramid is a polyhedron with a polygonal base and triangular faces that meet at a common vertex called the apex. Pyramids are classified based on the shape of their base, such as square pyramids, triangular pyramids, pentagonal pyramids, etc.
Tetrahedron (pyramids, for example)
there is no shape such as this in the 2nd or 3rd dimension figures.in the 1st dimension it is poosible
A triangular based pyramid has 4 faces, 6 edges and 4 vertices
An octahedron: two quadrilateral based pyramids with their bases together.
Triangular prisms and Rectangular pyramids
Pyramids have some triangular faces.
A di-pentagonal pyramid: which is two pentagonal pyramids with their pentagonal faces stuck together.
Faces = 4 Edges = 6 Vertices = 4 The shape is also known as a tetrahedron.
A triangular prism has 5 faces. Pentagonal prisms and hexagonal pyramids have 7.