A trapezohedron that is the dual polyhedron of the pentagonal antiprism 
.
It is also (confusingly) known as the pentagonal deltohedron.
Pentagonal Trapezohedron
See also
Dual Polyhedron, Pentagonal Antiprism, TrapezohedronExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Pentagonal Trapezohedron." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PentagonalTrapezohedron.html