Decagonal duotruncatoalterprism

The decagonal duotruncatoalterprism is a convex isogonal polychoron and the ninth member of the duotruncatoalterprism family. It consists of 20 decagonal prisms, 40 decagonal cupolas, 100 rectangular trapezoprisms, and 100 tetragonal disphenoids. 1 decagonal prism, 3 decagonal cupolas, 2 rectangular trapezoprisms, and 1 tetragonal disphenoid join at each vertex. It can be obtained as the convex hull of two orthogonal decagonal-didecagonal duoprisms. However, it cannot be made scaliform.