283| 9
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[几何] 求$\triangle ABC$的外接圆的半径。 |
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Author|
lemondian
Posted at 2024-2-18 17:54:00
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Comment这个我明白了,关键是后面的边长与面积我老推不出来呢?😅
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Comment哦哦,我想多了。😅
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2025-4-21 19:03 GMT+8
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