9 截正十二面體變正二十面體

./9%20%E6%88%AA%E6%AD%A3%E5%8D%81%E4%BA%8C%E9%9D%A2%E9%AB%94%E8%AE%8A%E6%AD%A3%E4%BA%8C%E5%8D%81%E9%9D%A2%E9%AB%94_html.png
Download Cabri 3D Plugin.

HTML export by Cabri 3D