Các câu hỏi tương tự
tren cung mot nua mat phang co bo chu a tia ox ve cac tia oy,om,on sao cho goc xoy = 50 do , goc xom =90 do ,xon = 130 do
a, tinh so do goc yom , so do goc mon va neu nhan xet
b, ve tia ot la tia phan giac cua goc xoy roi tinh goc mot
ngu toan dung nem gach
Cho AOB=600. Tren cung mot nua mat phang bo OB chua tia OA, ve tia Ox vuong goc voi tia OB. Tren nua mat phang kia, ve tia Oy vuong goc voi tia OA
a) Chung minh: AOx = BOy
b) Ve Ox, la tia doi cua tia Ox. Hay tinh x,Oy
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 mot nua mat phang bo chua tia oa ve hai tia ob oc sao cho goc boa bang 145 do oc coa bang 55 do.tinh so do goc boc
Cho tia Ox . Ve hai goc xOy va xOz .tren cung mot nua mat phang co bo chua tia Ox sao cho xOy = 50 do , xOz = 65 do
cho hai tia oy, oz cung nam tren mot nua mat phang bo chua tia ox, biet goc xoy la 50 do, goc xoz la 100 do ve tia phan giac om cua goc xoy ve tia phan giac on cua goc xoz tinh mon
tren cung mot nua mat phang co bo chua tia ox , ve hai tia oy va oz sao cho goc xoy = 100,xoz = 20
a, tinhso do goc yoz
b,ve tia om la tia phan giac cua goc yoz.tinh so do goc xom
cho tia Ox. tren cung mot nua mat phang bo Ox ve hai tia Oz va Ot sao cho goc xOz= 35o , goc xOt=145o .
a) Trong ba tia Ox, Ot, Oz tia nao nam giua hai tia con lai
b)Tinh so do goc tOz
neu co the thi ca hinh nua nho !!!!!
tren cung mot nua mat phang bo chua tia ox ve goc xot 40 do va goc xoy 80 do a tinh goc yot b tia ot co la tia phan giac cua goc xoy khong vi sao c ve goc xom ke bu voi goc xot ve on la tia phan giac cua goc xom tinh goc mon