Các câu hỏi tương tự
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 ?
cho duong thang xy di qua diem O.Tren cung mot nua mat phang co bo la duong thang xy,ke cac tia Oz,Ot sao cho goc xOz=130 do,goc yOt=100 do
a) Tinh goc zOt
b)Goi Om la tia phan giac cua goc tOz,tinh goc mOy
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 cung mot nua mat phang co bo chua tia Ox, ve 2 tia Oy va Oz sao cho goc xOy = 30 do, goc xOz = 110 do
a, trong 3 tia Ox , Oy,Oz, tia nao nam giua 2 tia con lai? vi sao
b, tinh goc xoz
c, ve Ot la tia phan giac cua goc yOz. Tinh goc zOt va goc tOx
giup minh voi minh can gap
BAI 1:tren cung mot nua mat phang co bo la duong thang chua tia Ox ve haitia Oy vaOz sao cho xOy =35 do va goc xOz = 70 do
a tinh so do goc yOz
b tia Oyco phai tia phan giac cua goc xOz ko vi sao
c ve tia Oy la tia phan giac cua zOt .tinh goc xOy va yOy
TREN CUNG MOT NUA MAT PHANG CO BO CHUA TIA Ox VE HAI GOC xOy,yOz KE BU NHAU SAO CHO GOC xOy=80 DO
A] TINH GOC yOz
B] GOI Om , On LA CAC TIA PHAN GIAC CUA GOC xOy VA GOC yOz . CHUNG TO GOC mOm LA GOC VUONG
C] TREN NUA MAT PHANG KO CHUA TIA Oy CO BO CHUA TIA Ox , VE TIA Oc SAO CHO GOC xOt=80 DO . TINH mOt