Mathematics, 05.07.2021 16:40, joynerjaila

Cho hình thang ABCD, đáy AB=5 cm , đáy CD=3 cm; M trên AD sao cho AD gấp 4 lần MA, N trên BC sao cho BC gấp 4 lần NB; chia hình ABCD thành 2 hình thang ABNM và CDMN. Diện tích ABCD=16 cm2 a. Tìm chiều cao hình thang ABCD b. Tìm MN

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Cho hình thang ABCD, đáy AB=5 cm , đáy CD=3 cm; M trên AD sao cho AD gấp 4 lần MA, N trên BC sao cho...