修正一下:O點為HI的中點,不是直線HI與JK的交點.
所有跟帖:
• 這樣的中心O在矩形內不止一處,例如中分線JK的中點也是一個 -askerfor- ♂ (72 bytes) () 01/06/2024 postreply 10:45:10
• 這樣的中心O在矩形內不止一處,例如中分線JK的中點也是一個 -askerfor- ♂ (72 bytes) () 01/06/2024 postreply 10:45:10
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