A shape that has 8 triangles is called an octahedron. An octahedron is a type of polyhedron that has eight triangular faces, twelve edges, and six vertices. It is one of the five Platonic solids and can be visualized as two pyramids with their bases joined together.
Octagon is consisting 8 triangles.
This is an Octahedron!
8 pointed star?
An octahedron
No. For example the triangles with sides {3, 4, 5} and {6, 8, 10} are similar but not congruent.
Octagon is consisting 8 triangles.
This is an Octahedron!
8 pointed star?
An octahedron
8
No. For example the triangles with sides {3, 4, 5} and {6, 8, 10} are similar but not congruent.
This shape is called a Icosahedron , I think.
Tetrahedron or Triangular Pyramid
sphere
An octahedron is a closed 3-d shape with 8 polygonal faces. The faces can be triangles, quadrilaterals, pentagons, hexagons or heptagons. So there is no polygon name for an octahedron.
A pyramid.
square