Các câu hỏi tương tự
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 goc xoy=1200 .Trong goc xoy ve hai tia sao cho xom =90,yon=90.
a)So sanh goc xon va yom?
b)Ve tia ot la tia phan giac cua goc xoy, chung minh xot la tia phan giac cua goc mon?
c) tren nua mat phan chua tia oy co bo chua tia ox, ve tia oz sao cho xoz>xoy. Chung minh rang toz=xoz+yoz:2
Ai nhanh nhất tớ sẽ tích
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 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
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
tren nua mat phang bo chua tia Ox ta ve cac tia Oy , Oz sao cho goc xOy =50 do ,goc xoz=150 do . Ve tia Om la tia phan giac cua goc xOz
a) tinh goc yoz
b) chung to rang goc xOy = 2.goc yom
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 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
tren nua mat phang bo chua tia Ox ve 2 tia Oy vaOz sao cho goc xOy= 30 do, xOz= 60 do
a, chung minh tia Oy la tia phan giac cua goc xOz.
b, Goi Ot la tia doi cua Oy. Tinh tOx.
c, Ve them 3 tia OA,OB,OC ko dung voi cac tia tren. Hoi co bao nhieu goc tao thanh tren hinh ve
MN GIUP MIK VOI