Pentagonal antiprism
- 五角反棱柱（是一种十二面体，底为正五边形，侧面为正三角形，共有12个面）
Pentagonal antiprism
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abstract:
In geometry, the pentagonal antiprism is the third in an infinite set of antiprisms formed by an even-numbered sequence of triangle sides closed by two polygon caps. It consists of two pentagons joined to each other by a ring of 10 triangles for a total of 12 faces.
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