Mathematics, 29.07.2021 16:40 brainfreeze911ovksah
Cho tam giác ABC. Gọi M, N lần lượt là trung điểm AB, AC, trên tia đối tia NM lấy điểm D sao cho N là trung điểm MD, cm:
a, CD song song AM
b, CD = MB
c, tam giác BMC = tg DCM
d, MN ss BC
e, MN = 1/2 DC
Answers: 1
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Cho tam giác ABC. Gọi M, N lần lượt là trung điểm AB, AC, trên tia đối tia NM lấy điểm D sao cho N l...
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