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English, 26.06.2021 19:00 michello3

Một người thợ cắt may cần thiết kế một cái túi áo như hình vẽ. Phía trên là một hình vuông có cạnh là 12cm. Đáy dưới là nửa hình elip có bán kính trục lớn là 6cm và bán kính trục bé 2cm. Hãy tính diện tích túi áo

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Một người thợ cắt may cần thiết kế một cái túi áo như hình vẽ. Phía trên là một hình vuông có cạnh l...

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