tren cung 1 nua mat phang co bo chua tia 0x ve tia 0m va 0n sao cho goc x0m =45 do , goc x0n =110 do
a/ trong 3 tia 0m , 0n , 0x ,tia nao nam giua 2 tia con lai ?
b/ tinh so do goc m0n
c/ tren nua mat phang chua tia 0x bo la duong thang chua tia 0m ve goc y0m =115do .chung to ran goc x0y va goc x0n la 2 goc ke bu
GIAI NHANH GIUP MINH VOI NHE , GAP LAM DAY , MINH SE TICH CHO
THANKS!