5 đường
**** nhé luonghungkt1 xinh đẹp
5 đường
**** nhé luonghungkt1 xinh đẹp
cho 5 diem phan biet va khong co 3 duong thang nao thang hang.Noi cac diem voi nhau de tao thanh duong thang.Co bao nhieu duong thang
1. Tren 1 duong thang xy lay 4 diem phan biet A,B,C,D hay chi ra cac tia doi nhau
2. cho 10 diem trong do khong co ba diem thang hang . Cu qua hai diem ta ve duoc 1 duong thang . Hoi co tat ca bao nhieu duong thang?
3. cho n diem trong do khong co ba diem nao thang hang . Cu qua hai diem trong so cac diem do ve duoc 1 duong thang. Biet rang co 435 duong thang tao thanh .Tim n?
1. Lay 4 diem A, B, C, D trong do khong co 3 diem nao thang hang. Ke cac duong thang di qua cac cap diem. Co bao nhieu duong thang tat ca? do la nhung duong thang nao?
2. Lay 4diem M,N,P,Q trong do 3 diem M,N,P thang hang va diem Q nam ngoai duong thang do. ke caacacc duong thang di qua cac cap diem. co bao nhieu duong thang phan biet? viet ten cac duong thang do
mong cac ban giai ho minh!
Cho truoc mot so duong thang phan biet khong co 3 diem nao thang hang. So duong thang tao thanh tu cac diem do la 36, tinh so diem ?
cho 5 duong thang phan biet doi mot cat nhau, khong co 3 duong thang nao cat nhau tai 1 diem .hoi co bao nhieu giao diem
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 .
tren duong thang xy lay them 2012 diem M1, M2,M3,..,M2012 phan biet voi nhau va phan biet voi cac diem A, B,O,I co the ve duoc bao nhieu goc dinh C ma cac canh la cac tia goc C va di qua cac diem da cho tren duong thang xy
cho duong thang xy.tren duong thang xy co 2017 diem,3 diem a,b,c khong thuoc duong thang xy va ko thang hang va bat ki diem nao tren dương thang xy deu khong thang hang voi hai trong ba diem a,b,c.qua hai diem bát ki nguoi ta ke mot duoc thang.hoi co bao nhieu duong thang?
Cho truoc 5 diem A, B, C, D, E trong do khong co 3 diem nao thang hang. Ve cac duong thang di qua cac cap diem. Hoi ve duoc bao nhieu duong thang, la nhung duong thang nao?