CHO DIEM O THUOC DUONG THANG XY TREN CUNG MOT NUA MAT PHANG CO BO LA DUONG THANG XY . VE TIA OZ , OT SAO CHO XOT = 62 DO , YOZ = 28 DO .
A TINH CAC GOC CON LAI
B VIET TEN CAC GOC NHON GOC TU GOC VUONG
C VIET TEN CAC GOC BU NHAU PHU NHAU
LAM CHO MINH DI CHIEU MINH PHAI NOP ROI AI LAM DUNG MINH TICH CHO 10 LIKE
Tren nua mat phang co bo la duong thang xy di qua diem O ve 2 tia ot oz sao cho xot 62 yoz 28
a viet ten cac goc nhon goc vuong gov tu
b viet ten cac cap goc phu nhau
c viet ten cac goc bu nhau
Tren cung nua mat phang co bo la duong thang xy di qua diem O. Ve tia Ot , Oz sao cho xot =62° , yoz = 28 °.
a) Tinh toz
b) Viet ten cac goc nhon, goc vuong, goc tu
c) Viet ten cac cap goc phu nhau
d) Viet ten cac cap goc ke bu, bu nhau
Cac viet day du giup mk nhe
Giup mk voi mk dang can sieu gap
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 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 ?
tren duong thang xy lay diem o ，tren cung 1 nua mat phang bo xy ve 2 tia oz va ot sao cho goc xoz=goc yot=130 do. tinh goc xot ，goc yoz，goc xot
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 duong thang xy lay diem o. ve tia oz sao cho goc xoz = goc yoz
a, tinh goc xoz va yoz
b, ve tia ot nam trong goc xoz, hay ke ten cac cap goc bu nhau, phu nhau
c, ve tia om nam trong goc toy, gia su goc yom= 54 độ, goc xot= 36 độ
chung to goc toz va goc zom la 2 goc phu nhau
tren duong thang x'x lay diem O tuy y ve hai tia oz va oy nam tren cung mot nua mat phang co bo x'x sao cho xoz=40 do, xoy=3.xoz.
a) trong 3 tia ox,oy,oz,tia nao nam giua hai tia con lai
b) goi oz la tia phan giac xoy tinh goc zoz?
mong cac ban giai dung minh nhe minh dang gap sang mai minh phai nop bai roi
cho 2 diem A,, B thuoc 2 nua mat phang doi nhau bo la duong thang xy(A,Bko thuoc xy) Duong thang A, B cat xy tai M.
a,cho biet goc amy= 150 do. Hay tinh so do cac goc, gocamxva gocbmy.
b,tren tia mx lay mot diem o. Gia su gocaob=60do; goc aoy= 40 do.Tinh so do goc box
