Các câu hỏi tương tự
cho 2 goc ke bu goc xOy va yOz biet goc xOy=40 do
a/tinh gocb yOz
b/ve Ot la tia phan giac cua yOz tinh so do goc yOt va goc xOt
trem 1 nua mat phang ve 3 tia Ox Oy Oz sao cho goc xOy = 70 do va Oy la tia phan giac cua goc xOz yinh so do goc xOz va yOz
cho goc bet xoy ve tia ot sao cho goc yot bang 70 do va tia om nam giua tia ox va ot sao cho goc xom bang 90 do
tinh goc mot
Cho goc xOy va yOz la 2 goc vua ke, vua phu nhau. Tren cung nua mat phang bo xy ve hai tia OM, ON sao cho goc xOM=40 do, yON=70 do. Biet Om nam giua Ox va ON. Tinh goc MON
Cho goc bet xOy. Tren cung mot nua mat phang co bo xy , ve cac tia Oz va Ot sao cho goc xOz=70 do ; yOt=55 do
a, Chung to tia Oz nam giua hai tia Ox va Ot
b, Chung to tia Ot la tia phan giac cua goc yOz
Cho goc bet xOy. Tren cung mot nua mat phang co bo xy , ve cac tia Oz va Ot sao cho goc xOz=70 do ; yOt=55 do
a, Chung to tia Oz nam giua hai tia Ox va Ot
b, Chung to tia Ot la tia phan giac cua goc yOz
Cho goc bet xOy. Tren cung mot nua mat phang co bo xy , ve cac tia Oz va Ot sao cho goc xOz=70 do ; yOt=55 do
a, Chung to tia Oz nam giua hai tia Ox va Ot
b, Chung to tia Ot la tia phan giac cua goc yOz
bai 1: tren mot nua mat phang bo chua tia Oa ve tia Ob sao cho goc AOB=35 do va tia Oc sao cho goc AOC= 70 do
a, tia Ob co phai la tia phan giac cua goc AOC khong? vi sao?
b, ve tia OB` la tia doi cua tia OB. tinh so do goc ke bu voi goc AOB
Tren cung mot nua mat phang b chua tia ot,oy sao cho goc xoy=140do va goc xot=70 do
a) trong 3 tia ox,oy,ot tia nao nam giua hai tia con lai