截半二十面体
![](/Images/godic/202501/19/Icosidodecahedron4451.jpg")
![](/Images/godic/202501/19/Icosidodecahedron4451.png")
![](/Images/godic/202501/19/Icosidodecahedron_vertfig4452.png")
![](/Images/godic/202501/19/Rhombictriacontahedron.svg4452.png")
截半二十面体是半正多面体之一，由20个等边三角形和12个正五边形组成，有30个顶点和60条棱。
表面积![A = (5\sqrt{3}+3\sqrt{25+10\sqrt{5}}) a^2 \approx 29.3059828a^2](/Images/godic/202501/19/b7b43f7e9050e17ea7e8ea47467417f34452.png")
，体积![V = \frac{1}{6} (45+17\sqrt{5}) a^3 \approx 13.8355259a^3](/Images/godic/202501/19/4e06e15f9a7c44ace5afa14a20f94f5f4452.png")
。其两面角为![\arccos{(-\sqrt{\frac{5+2\sqrt{5}}{15}})} \approx 142.62^\circ](/Images/godic/202501/19/cca51bb8fe298d110a219d03115ea3994452.png")
截半二十面体每十条棱可以成为一个正十边形，共有六个独立的十边形。
icosidodecahedron
/'aikəusi,dəudekə'hi:drən/
英汉-汉英词典
n. (由二十个三角形的面和十二个五角形的面组成的)三十二面体
词组 | 习惯用语
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- externalization n. 形象化；客观化
网络短语:
icosidodecahedron 截半二十面体; 十二面体; 三十二面体;
truncated icosidodecahedron 大斜方截半二十面体
Icosidodekaeder icosidodecahedron 截半二十面体
Great ditrigonal icosidodecahedron 大双三斜三十二面体
中文百科
英语百科
Icosidodecahedron 截半二十面体
![](/Images/godic/202501/19/Icosidodecahedron4452.jpg")
![](/Images/godic/202501/19/Icosidodecahedron4452.png")
In geometry, an icosidodecahedron is a polyhedron with twenty triangular faces and twelve pentagonal faces. An icosidodecahedron has 30 identical vertices, with two triangles and two pentagons meeting at each, and 60 identical edges, each separating a triangle from a pentagon. As such it is one of the Archimedean solids and more particularly, a quasiregular polyhedron.
- overpigmented
- over pin
- over pin dial
- over pins measurement
- over piston water inlet
- overpitched
- overpitch
- over pivot rate
- over pivot weight
- overplace
- overplaced
- overplacement
- overplaces
- overplacing
- overplaid
- overplan
- overplanned
- overplanning
- overplant
- overplanted
- overplanting
- overplants
- Overplate
- overplaw
- overplay