Great pentakis dodecahedron
Introduction 3D model of a great pentakis dodecahedronIn geometry, the '''great pentakis dodecahedron''' is a nonconvex isohedral polyhedron.It is the dual of the uniform small stellated truncated dodecahedron. The pentagonal faces pass close to the center in the uniform polyhedron, causing this dual to be very ''spikey''. It has 60 intersecting isosceles triangle faces. Part of each triangle lies within the solid, hence is invisible in solid models.
Proportions The triangles have one very acute angle of  and two of . The dihedral angle equals .
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