The Elongated Pentagonal Dipyramid has 12 vertices,
15 faces and 25 edges. (The Elongated Pentagonal Dipyramid is the only polyhedron in our
database with 15 faces.) The Elongated Pentagonal Dipyramid contains 10
triangles and 5
quadrilaterals.The Elongated Pentagonal Dipyramid is the 16th Johnson Solid.
