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See also: Platonic Solids - Regular Polyhedra | |
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IcosahedronA regular icosahedron is one of the Platonic solids having 20 equilateral triangular faces. The volume V of the icosahedron is given by its surface S is defined by The radii of the circumscribed (rc) and inscribed (ri) spheres are = a0.951056516295153572116439...,
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Home Analytic Geometry 3D Solids Platonic Solids Icosahedron |