Các câu hỏi tương tự
tren cung mot nua mat phang bo chua tia om,ve cac tia on,op sao cho goc mon =50 do,goc mop =130 do
a) trong 3 tia om,on,op tia nao nam giua 2 tia con lai? tinh goc nop
b) ve tia phan giac oa cua goc nop.tinh goc aop
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 nua mat phang bo chua tia Oa ,ve hsi tia Ob va Oc sao cho goc aOb =150 do ,goc aOc =90 do .Om la tia pham giac cua goc aOc
On la tia phan giac cua goc bOc
a) chung to rang Oc nam giua Oa,Ob
b) tinh so do cac goc bOc=?,aOm=?,aOn=?,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
cho hai tia oy va oz cung nam tren mot nua mat phang co bo chua tia ox biet goc xoy =30do,goc xoz=120do
a,tinh so do goc yoz
b, ve tia phan giac om cua goc xoy, tia phan giac on cua goc xoz. tinh so do goc nom
tren cung 1 nua mat phang co bo chua tia 0x ve tia 0m va 0n sao cho goc x0m =45 do , goc x0n =110 do
a/ trong 3 tia 0m , 0n , 0x ,tia nao nam giua 2 tia con lai ?
b/ tinh so do goc m0n
c/ tren nua mat phang chua tia 0x bo la duong thang chua tia 0m ve goc y0m =115do .chung to ran goc x0y va goc x0n la 2 goc ke bu
GIAI NHANH GIUP MINH VOI NHE , GAP LAM DAY , MINH SE TICH CHO
THANKS!
cho hai tia Ox,Oy la hai tia doi nhau . tren hai nua mat phang doi nhau co bo chua tia Ox ve cac goc Om,On sao cho goc xOm=70 do,goc yOn=70 do.Chung to rang Om,On la hai tia doi nhau
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
cho goc aob,tia phan giac ox cua goc aob.tren nua mat phang bo chua tia ob voi bo la duong thang oa ve tia oy sao cho goc aoy>aob
a,chung to rang tia ob nam giua 2 tia oa va oy
b,tinh goc xoy biet goc yoa nam giua 2 tia oa va oy
c,chung to goc xoy=1/2(goc yoa+gocyob)
cac ban giup minh voi nha gap lam rui,cam on