T
tieuthu_bongbong


DE BAI : Cho doan thang MN ; PQ cat nhau tai A va A la trung diem cua moi doan thang . Diem I la trung diem cua duong thang MQ . Duong thang AI cat PN tai R
a) C/m tam giac AMR = tam giac ANP
b) C/m MQ//PN
c) C/m RP = RN
a) C/m tam giac AMR = tam giac ANP
b) C/m MQ//PN
c) C/m RP = RN