C
chjt4ylench0j_tjnhl4gj


Cho tam giac ABC co 3 goc nhon , tu diem M tren canh BC ke cac duong MP vuong goc voi AB tai P . Ke MQ vuong goc AC tai Q . Biet goc A = 70* , tinh PMQ
co gang giai nha cac ban
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co gang giai nha cac ban