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Drilled Pentagonal Rotunda

This model is a pentagonal rotunda that has a pentagonal cupola and a pentagonal antiprism excavated through it. It has a genus of 1, ie it has one hole.

Here's the rotunda on the left, with the shape of the hole on the right, as a solid shape made from two convex polyhedra glued together. The pentagonal prism and pentagonal cupola.
The nets for the model.
Start construction like this.
Then attach the outer part around it.

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