icosahedron ~ A Maths Dictionary for Kids Quick Reference by Jenny Eather

Quick Reference ~ A maths Dictionary for Kids by Jenny Eather

Ii
icosahedron • an icosahedron is any polyhedron with 20 faces. • a regular icosahedron is one of the Platonic solids having 20 congruent faces that are equilateral triangles, 30 edges and 12 vertices. EXAMPLES:

icosahedron

• an icosahedron is any polyhedron with 20 faces.
• a regular icosahedron is one of the Platonic solids having
20 congruent faces that are equilateral triangles,
30 edges and 12 vertices.

EXAMPLES:
icosahedron
the Platonic solids


	© Jenny Eather 2014. All rights reserved.