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单词 Truncated icosidodecahedron
释义

Truncated icosidodecahedron

中文百科

大斜方截半二十面体

大斜方截半二十面体是半正多面体之一,由30个正方形,20个正六边形和12个正十边形组成,有120个顶点和180条棱。除棱柱和反棱柱以外,如果所有的半正多面体具有相同的棱长,大斜方截半二十面体将具有最大的表面积和体积。

表面积和体积为:

\begin{align}
A & = 30 \left [ 1 + \sqrt{ 2 \left ( 4 + \sqrt{5} + \sqrt{15+6\sqrt{6}} \right ) } \right ] a^2 \\
& \approx 175.031045a^2 \\
V & = ( 95 + 50\sqrt{5} ) a^3 \approx 206.803399a^3 \\
\end{align}
英语百科

Truncated icosidodecahedron 大斜方截半二十面体

In geometry, the truncated icosidodecahedron is an Archimedean solid, one of thirteen convex isogonal nonprismatic solids constructed by two or more types of regular polygon faces.

It has 30 square faces, 20 regular hexagonal faces, 12 regular decagonal faces, 120 vertices and 180 edges – more than any other convex nonprismatic uniform polyhedron. Since each of its faces has point symmetry (equivalently, 180° rotational symmetry), the truncated icosidodecahedron is a zonohedron.

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更新时间:2025/6/18 7:00:10