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nguyentuyet84
2 năm trước
mọi người xem em nói đk ạ chứ em không bảo là cái đấy đúng rồi nhưng phải cm các thứ ạ... cách để biết đường trung tuyến nằm trong tam giác là như thế này đúng không ạ C1:đường trung tuyến là đường thẳng nối từ đỉnh đến trung điểm của cạnh đối diện C2:nếu ta xác định đường trung tuyến được rồi thì sẽ xem nếu đường trung tuyến nằm trong tam giác thì ta suy ra luôn đường trung tuyến đấy nằm trong tam giác đúng không ạ mọi người xem em nói đúng hết 100% không ạ xong em vote 5 sao và ctlhn ạ giúp em với
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