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成俊峰奧數老師
成俊峰奧數老師
更新时间:2024-04-29 22:25:47

如圖由一個正三角形和一個正六邊形組成,如果正三角形ABC的面積為960,正六邊形DEFGHI的面積是840,那麼陰影部分的面積是多少?

成俊峰奧數老師(成俊峰老師題目歡迎解答)1

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