tren duong thang xy lay 10 diem phan biet. hoi co bao nhieu tia phan biet, co bao nhieu cap tia phan biet
Tren duong thang xy lay 10 diem A1, A2, A3, A4...A10. Hoi co bao nhieu diem phan biet trong hinh ve.
Giai ro ra gium minh voi.
cho hai duong thang a va b song song. tren duong thang a lay 10 diem phan biet, tren duong thang b lay 15 diem phan biet. hoi co the ve bao nhieu duong thang phan biet qua 2 trong cac diem da cho ?
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 3 diem M N P theo thu tu do nam tren duong thang xy hoi so doan thang co trong hinh ve la bao nhieu
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?
Cho doan thang d . Ve them 4 diem M,N ,P,Q theo thu tu ay . Ve diem A khong nam tren duong thang d.
a) Ve tia AM, tia QA
b)Ve duong thang AN va duong thang AP.
c) hinh tren co bao nhieu doan thang?
tren duong thang xy lay 2015 diem phan biet khi do em hay tinh xem tren duong thang do co bao nhieu doan thang
Tren duong thang xy lay 4 diem A,O,B,E sao cho O nam giua A va B , B nam giua O va E . Hay ke ten :
a) cac cap tia doi nhau
b) cac tia goc A trung nhau , cac tia goc O trung nhau
c0 Co bao nhieu tia phan biet tren hinh ve ?