Các câu hỏi tương tự
cho tia ox,oy đối nhau .tren hai nua mat phang doi nhau co bo chua tia om,on sao cho xom=70 va xon=70 chung to rang om,onla 2tiadoi nhau
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
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
Tren cung nua mat phang bo chua tia ox ve hai tia ot vaoy sao cho goc xot =50 do goc xoy=130do
A tinh so do goc toy. B ve tia om la tia doi phan giac cua goc toy chung to om vuong goc voi ox
tren nua mat phang bo chua tia ox ,ve hai tia oy,oz sao cho goc xoy bang 110 do ,xoz bang 20 do
a)tinh so do goc yoz ?
b) ve tia phan giac om cua goc yoz va tia on la tia doi cua tia ox .Tinh so do goc mon ?
c)ke ten cac cap goc ke bu
tren cung mot nua mat phang bo chua tia Ox,ve hai tia Oy,Oz sao cho goc xOy=80do,xOz=130do
a)Tinh so do goc yOz.
b)Ve tia Om la tia doi cua tia Ox.Tinh so do goc mOz.
c)Ve tia Ot la tia phan giac cua goc xOy.Hoi tia Oy co phai la tia phan giac cua goc zOt khong?Vi sao?
truyen cung mot nua mat phangco bo la duong thang chua tia Ox
Ve cac tia Om,On,Oa,sao cho :goc xOa =60 , goc xOm = 120 ,goc xOn = 40
Ve tia Oy la tia phan giac cu goc mOn
a . goc mOn = ? , goc mOa =? , goc nOa =?
b . goc yOm =? , goc yOn =? , goc yOa =?
c . Ve tia doi cua tia Ox la tia Ox' ;So sanh goc x'Om va goc xOy , goc x'Oa va goc xOm
d . Tia Oa co la tia phan giac cua goc xOm khong ,vi sao
cho goc betxOy. Ve tia Oz sao cho goc xOz=70 độ
a, Tinh goc zOy
b, Tren nua mat phang bo chua tia Ot sao cho goc xOt=140 độ. Chung to tia Oz la tia phan giac cua goc xOt
c, Ve tia Om la tia doi cua tia Oz. Tinh goc xOm
Tren mot nua mat phang bo chua tia Ox ve cac tia Oy, Oz sao cho goc xOy =50do , goc xOz=80do .Ve tia Ot la tia doi cua tia Oy .
Chung to rang:
Goc zOt tru goc xOt = goc xOy tru goc zOy