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victoriatran10x
2 năm trước
cho đoạn thẳng IK=9cm trên đoạn thẳng IK lấy điểm M sao cho KM=6cm a.tính IM b.trên tia đối của MI lấy điểm Q sao cho MQ=3cm.điểm M có là trung điểm của đoạn thẳng IQ ko vì sao c.Chứng tỏ Q là trung điểm của đoạn thẳng KM
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