菱形六十面體

Autore:Ho-Kai Chen

先畫正二十面體, 再由中心點向各面畫出菱形面 ---- In geometry, a rhombic hexecontahedron is a stellation of the rhombic triacontahedron. It is nonconvex with 60 golden rhombic faces with icosahedral symmetry.

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拼砌四邊形
長方體平面投影 (Codex版)
Nested spiral octagon
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分數與小數
quadrilaterals 4
數據分析（1）
九九乘法表
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Rette tangenti
Cubo
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