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四面體的展開圖是一個三角形的每一條邊都鋪上一個三角形

Floor 1 巨大八爪鱼 8/23/12 13:15
因此正五胞體的展開圖也是一個四面體每個面都鋪上一個四面體
Floor 2 巨大八爪鱼 8/23/12 13:15

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