Regular Icosahedron (Surface Area)


An icosahedron is a polyhedron with 20 triangular faces, 30 edges and 12 vertices. A regular icosahedron has 20 identical equilateral faces, with five of the triangular faces meeting at each vertex. The area of the icosahedron is related to the length of the edge of the equilateral face.

Related formulas


AiArea of the surface of the icosaedron (m2)
aLength of the edge of the triangle face (m)