co nhung diem khac A ma cung thuoc duong thang m ko?
Những câu hỏi liên quan
cho duong thang m, diem A thuoc duong thang m và diem B khong thuoc duong thang m
a, ve hinh va viet ky hieu
b, co nhung diem khac diem A ma cung thuoc duong thang m khong? hay ve hai diem nhu the va ve ky hieu.
c, co nhung diem khong thuoc duong thang m ma khac voi diem B khong? hay ve hai diem nhu the va viet ky hieu
b) co nhung diem khac A ma cung thuoc duong thang m khong?
nhung diem khac A do co trong hinh ve hay la ta ve them vay ?
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Voi 1 duong thang a cho truoc,co nhung diem thuoc a va co nhung diem ko thuoc a.
Dung hay Sai ?
minh dang voi hay giup minh nha!
cam on!
Cho cac diem a ,b,c,d,e trong do a,b,c cung thuoc duong thang m; cac diem c, d, e cung thuoc duong thang n va b, c, d la 3diem ko thang hang
Ve hai diem A va B cung thuoc duong thang xy va diem C khong thuoc duong thang xy .Ve tia BC
a.ke ten cac doan thang
b.ke ten hai tia doi nhau goc B
c.ve diem D nam giua hai diem A va B . hoi hai tia DX va BY co la hai tia doi nhau ko ? vi sao ?
Ve tren cung mot hinh theo cach dien dat sau :
a)Ve 4 diem A ,B ,C D sao cho C nam giua A, B va 3 diem A, B D ko thang hang . Hay ve va ke ten duong thang (phan biet) di qua tung cap diem .
b) Ve diem E sao cho E va D nam khac phia doi voi A . Ve diem F sao cho C,E,F thang hang va F thuoc duong thang DB
Cau 5: Trong cac khang dinh sau, khang dinh nao dung, khang dinh nao sai?1.Ba diem phan biet la ba diem thang hang.2.Voi ba diem phan biet luon co hai diem nam ve cung phia doi voi diem con lai.3.Voi ba diem thang hang phan biet luon co hai diem nam khac phia voi diem con lai.4.Voi ba diem A,B,C thang hang thi diem B luon nam giua hai diem A,C.5.Co mot va chi mot duong thang di qua hai diem (phan biet) cho truoc.6.Hai duong thang phan biet thi song song voi nhau.7.Hai tia chung goc thi cung nam...
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Cau 5: Trong cac khang dinh sau, khang dinh nao dung, khang dinh nao sai?
1.Ba diem phan biet la ba diem thang hang.
2.Voi ba diem phan biet luon co hai diem nam ve cung phia doi voi diem con lai.
3.Voi ba diem thang hang phan biet luon co hai diem nam khac phia voi diem con lai.
4.Voi ba diem A,B,C thang hang thi diem B luon nam giua hai diem A,C.
5.Co mot va chi mot duong thang di qua hai diem (phan biet) cho truoc.
6.Hai duong thang phan biet thi song song voi nhau.
7.Hai tia chung goc thi cung nam tren mot duong thang.
8.Hai tia chung goc thi doi nhau
9.Neu diem M nam giua diem A,B thi no la trung diem cua doan thang AB.
10.Neu MA=MB thi M la trung diem cua doan thang AB.
11.Neu MA+MB= AB va MA=MB thi M la trung diem cua doan thang AB.
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Cho doan thang AB = 6 cm. Lay 2 diem C,D thuoc doan thang AB sao cho AC=BD=2 cm. Goi M la trung diem cua AB. a) Giai thich vi sao M la trung diem cua CD b) Tim tren hinh ve nhung diem khac cung la trung diem cua doan thang
chi tiet cho minh nha
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?
Tren duong thang x,y lay o.Lay diem a thuoc tia ox,B thuoc tia oy sao cho OA=2cm;OB=2oa
A)Tinh do dai doan AB?
B)Goi Yla trung diem cua OB.Chung minh O la trung diem cua doan thang AI
C) Tren duong thang xy lay 100 diem diem phan biet(khac O,A,B,I).Noi 2 diem ta duoc mot doan thang.Hoi co bao nhieu duong thang tao thanh?
giup minh voi! HELP ME!!!!!