Cau 4:duong thang a cat 2 duong thang song song thi x va y tai Mva N .Ta co
A.M1 =N1
B.M3=N1
C.M4=N4
D. M4 =N1
Cau 2:(1diem) dien dau 'x'vao o thich hop
Dien dung hay sai
1. Trong Tam giac vuong ,2 goc nhon bu nhau
2.Tam giac ABC co A=80 do;B=75 do thi c=25do
3. Goc ngoai cua tam giac la goc ke bu voi 1 goc cua tam giac
4. Cho diem O nam ngoai duong thang D co vo so duong thang di qua O va vuong goc voi D
Loga
Sinh Học lớp 12
