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hovang49
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Cho tam giac ABC , dien M nam giua A va B . Qua M ke duong thang // voi AC, cat BC tai P . Qua M ke duong thanh // voi BC cat AC tai N.
a) Tu giac MNCP la hinh gi?
b) Xac dinh vi tri diem M tren AB de tu giac MNCP la hinh thoi
c) tam giac ABC can dieu kien gi thi tu giac MNCP la hinh chu nhat
a) Tu giac MNCP la hinh gi?
b) Xac dinh vi tri diem M tren AB de tu giac MNCP la hinh thoi
c) tam giac ABC can dieu kien gi thi tu giac MNCP la hinh chu nhat