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Mathematics, 05.09.2021 06:20 ToriChristine

cho hình thang ABCD có AB//CD và MNlà đường trung bình của hình thang, biết rằng CD=5AB, tỉ số giữa MN và AB là

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cho hình thang ABCD có AB//CD và MNlà đường trung bình của hình thang, biết rằng CD=5AB, tỉ số giữa...
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