


Related Terms 


Octahedron: A regular polyhedron whose eight faces are congruent equilateral triangles. 
Equilateral Triangle: A triangle with three equal sides.
Congruent: Having the same size, shape and measure.
Congruent Triangles: Triangles that have the same size and shape.
Polyhedron: A 3dimensional figure that has polygons as faces.
Cube: A regular polyhedron whose six faces are congruent squares.
Dodecahedron: A regular polyhedron whose twelve faces are congruent regular pentagons.
Icosahedron: A regular polyhedron whose twenty faces are congruent equilateral triangles.
Platonic Solids: The five regular polyhedrons, meaning that they are polyhedrons that have faces which are congruent regular polygons and have the same number of edges meeting at each vertex.
Regular Polyhedron: A 3dimensional solid that has congruent regular polygons as faces and has congruent angles between all faces.
Tetrahedron: A regular polyhedron whose four faces are congruent equilateral triangles.


