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Gyroelongated pentagonal rotunda : ウィキペディア英語版 | Gyroelongated pentagonal rotunda
In geometry, the gyroelongated pentagonal rotunda is one of the Johnson solids (''J''25). As the name suggests, it can be constructed by gyroelongating a pentagonal rotunda (''J''6) by attaching a decagonal antiprism to its base. It can also be seen as a gyroelongated pentagonal birotunda (''J''48) with one pentagonal rotunda removed. == Dual polyhedron ==
The dual of the gyroelongated pentagonal rotunda has 30 faces: 12 kites, 6 rhombi, and 12 quadrilaterals.
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