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Mathematics, 19.06.2021 14:00 izzyisawesome5232

cho nửa đường tròn tâm O đường kính Ab với các tiếp tuyến Ax, By nằm cùng phía với AB. Qua điểm M thuộc nửa đường tròn ( M khác A vàB), kẻ tiếp tuyến với nửa đường tòn cắt Ax, By theo thứ tự ở C và D sao cho MC=4cm, MD=9cm. Tính diện tích tam giác AMB

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cho nửa đường tròn tâm O đường kính Ab với các tiếp tuyến Ax, By nằm cùng phía với AB. Qua điểm M th...
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