T
thuylinh.hp


Nhan dang tam giac thuong co tinh chat dac biet
Cac ban thu lam bai nay xem
Tam giac ABC co b^2=ac
CMR tam giac ABC ko the co hai goc lon hon 60 do
Cac ban thu lam bai nay xem
Tam giac ABC co b^2=ac
CMR tam giac ABC ko the co hai goc lon hon 60 do