經過圓心的任一直線兩邊都是鏡麵對稱的。所以π正著倒著躺著斜著,任何位置,都是一樣的。:)))
π字正寫倒寫沒嘛區別,有π則圓。圓是高度對稱的,
所有跟帖:
• 給我也來個π吧,我躺著比站著高哪. -涮埽- ♀ (0 bytes) () 09/27/2010 postreply 13:20:24
• 也來個π,肯定能改善您的身材,好主意啊!無牙不齒, -無牙- ♂ (106 bytes) () 09/27/2010 postreply 16:49:23
• 給我也來個π吧,我躺著比站著高哪. -涮埽- ♀ (0 bytes) () 09/27/2010 postreply 13:20:24
• 也來個π,肯定能改善您的身材,好主意啊!無牙不齒, -無牙- ♂ (106 bytes) () 09/27/2010 postreply 16:49:23
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