Các câu hỏi tương tự
tren duong thang xy' lay 1 diem O. Tren cung nua mf Bo la duong thang xx' ve 3 ta Oy,Ot,Oz sao cho :goc x'Oy=40độ ;xot=97độ;xOz=54độ a) cmr tia Ot nam giua 2 tia oy va Oz b)cmr tia Ot la tia phan giac cua goc zoy
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
tren duong thang x'x lay 1 diem O .tren cung 1 nua mat phang bo x'x ta ke 3 tia OY;Ot;Oz sao cho goc x'Oy la 42 do goc xOt ls 97 do va goc xOz la 56 do .a,chung to Ot nam giua 2 tia Oy,Oz .b,chung to Ot la tia phan giac cua goc zOy
tren duong thang xy lay diem o ，tren cung 1 nua mat phang bo xy ve 2 tia oz va ot sao cho goc xoz=goc yot=130 do. tinh goc xot ，goc yoz，goc xot
tren cung 1 nua mat phang co bo la duong thang chua tia Ox ve 2 tia Oy va Oz sao cho goc xOy=60do xOt = 100 do
trong 3 tia Ox Oy Oz diem nao nam giua 2 tia con lai
tinh so do goc yOz
bai 1 tren duong thang xx, lay mot diem O.Tren cung nua mat phang bo la duong thang xx, ve 3 tia oy,ot,oz sao cho xoy =40do,xot=97do,xoz=54do
a.,chung minh rang ot nam giua hai tia oy va ot
b, CMR tia OT la tia phan giac cua goc zoy
Cho diem O nam tren duong thang xy. Tren cung 1 nua mq bo la duong thang xy.Ve 2 tia Oz, Ot sao cho goc yOz = 64 do, goc xOt = 58 do
a) Tinh so do cua goc xOz va zOt ?
b) Chung to rang Ot la tia phan giac cua goc xOz
c) ve tia phan giac Om cua goc yOz .Hoi goc mOt la goc nhon, goc vuong hay goc tu .Vi sao ? Tu do rut ra nhan xet gi ?