ba duong thang xx' ,yy' ,zz' cung di qua diem O .hay viet ten cac cap goc bang nhau
a.Ve ba duong thang xx' ,yy',zz' cung di qua diem O.Hay liet ke cac cap goc doi dinh.
b.Neu ve 5 duong thang cung di qa mot diem thi co bao nhieu cap goc doi dinh
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
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
a) ve nam diem M,N,P,Q,R sao cho ba diem M,N,P thang hang,ba diem N,P,Q thang hang ,con ba diem N,P,R khong thang hang b) ke cac duong thang di qua cac cap diem.Co bao nhieu duong thang,ke ten cac duong thang do c)co bao nhieu doan thang?ke ten cac doan thang do d)ke ten cac tia goc P.Trong cac tia do chi ra hai tia doi nhau ? hai tia trung nhau?
co ai biet lam bai nay khong co the giup minh duoc khong minh dang gap do
Bai 1:Cho 3 duong thang x' y y' . Ba duong thang cung di qua diem O
Hay liet ke cac cap goc doi dinh boi cac duong thang da cho
Bai 2 : cho 2 duong thang x x' va y y' cat nhau tai O biet goc yOx - yOz= 30. Tinh so do moi goc co tren hinh ve. 😘😭😭😭😭🙌🙋giup minh nha
Bai 1:Cho 3 duong thang x' y y' . Ba duong thang cung di qua diem O
Hay liet ke cac cap goc doi dinh boi cac duong thang da cho
Bai 2 : cho 2 duong thang x x' va
Bai 1:Cho 3 duong thang x' y y' . Ba duong th
Bai 1:Cho 3 duong thang x' y y' . Ba duong thang cung di qua diem O
Hay liet ke cac cap goc doi dinh boi cac duong thang da cho
Bai 2 : cho 2 duong thang x x' va y y' cat nhau tai O biet goc yOx - yOz= 30. Tinh so do moi goc co tren hinh ve.
cho 3 tia xx, , yy, , zz, c nhau tai o neeu xac cap goc bang nhau
cho hai duong thang xx' va yy' cat nhau tai O
a) cm hai tia phan giac Ot , Ot' cua mot cap goc ke bu tao thanh mot goc vuong
b)cm neu M thuoc duong thang Ot' thi M cach deu hai duong thang xx' va yy'
c) cm neu M cach deu hai duong thang xx' va yy' thi M thuoc duong thang Ot hoac thuoc duong thang Ot'
d)Khi M=O thi cac khoang cach tu M den xx' va yy' bang bao nhieu
e)em co nhan xet gi ve tap hop cac diem cach deu hai duong thang cat nhau xx' va yy'
có 2015 duong thang phan biet cung di qua diem o hoi có bao nhieu cap goc bang nhau khong ke goc bet duoc tao thanh
lay muoi mot diem M,N,P,Q,A,D,F,G,R,T,S trong do khong co ba diem nao thang hang . Ke cac duong thang di qua cac cap diem . Co bao nhieu duong thang ( phan biet ) ? Viet ten cac duong thang do .
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