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tranthilan123
2 năm trước
Cho (O) và M nằm trong đường tròn. Qua M vẽ dây cung AB vuông góc với OM và dây cung CD không vuông fóc với OM. SO sánh độ dài 2 dây cung AB và DC #Chi tiết hộ em với mọi người ơi, có cả vẽ hình nữa nha,
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