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cho goc xoyva yodet la hai goc ke bu biet xoy =49 tinh goc tia odet
giup toi voi nhe cac ban helo
cho goc xOy ke bu voi goc yOz biet goc yOz=180do.ve tia Ot nam giua 2 tia Ox va Oy, biet goc xOt=40do. tinh so do goc xOy va goc yOt
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
Xet 2 goc ke bu xOy; yOx'. Biet goc xOy=140 do. Goi Ot la tia phan giac cua goc xOy. Tinh goc x'Ot.
CHI TIET GIUP MINH NHE
cho goc xoy va yoz la 2 goc ke bu biet 4xoy=5yoz tinh goc xoy va yoz
ve hai goc ke bu xOy va yOx'. biet xOy=110,goi Ot la tia phan giac cua goc xOy. tinh goc x'Ot
cho 2 goc ke bu goc xOy va yOz biet goc xOy=40 do
a/tinh gocb yOz
b/ve Ot la tia phan giac cua yOz tinh so do goc yOt va goc xOt
Ve 2 goc ke bu xoy va yoz
a, Biet xoy=50°. Tinh yoz
b, Ve tia phan giac Om cua xoy va On cua yoz
Goc mOn ke voi goc nao?
Hay giai thich vi sao mOy va nOy phu nhau?
GIUP MINH!!!!CHIEU NAY MINH NOP
cau 1 Cho 2 goc ke bu xOy va yOz, biet goc xOy=\(40^0\)
a) Tinh so do goc yOz
b) Ve tia Ot la tia p/g cua goc yOz. Tinh so do goc yOt, goc xOt
cau 2 Cho goc xOt=\(30^0\). Ve goc yOt ke bu voi xOt
a) Tinh so do goc yOt
b) Ve tia Ot la tia doi cua tia Ox.Chung minh tia Oy la tia p/g
cua goc tOz
Lam ho mk voi mk tick cho mk can lam
