cho ba diem C,D,E thang hang,biet CD=2,5cm,DE=8cm,CE=5,5cm.hoi trong ba diem C,D,E diem nao nam giua hai diem con lai
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cho 3 diem thang hang c,d,e hoi hai diem nao nam giua 2 diem con lai neu cd+ce=de
d nằm giữa hai điểm còn lại k mình nhé
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Điểm C nằm giữa 2 điểm còn lại
k nha^_^
Kt bn nha t_t
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cho 3 diem C D E biet CD=6cm CE=5cm DE=4cm hoi trong 3 diem diem nao nam giua 2 diem con lai
ve : a) ba diem m,n,p thang hang .b)ba diem c,e,d thang hang sao cho diem e nam giua hai diem cvad .c)ba diem t,q,r khong thang hang
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 ba diem v,a,t thang hang . diem nao nam giua hai diem con lai neu:
tv + va=ta
Ve 5 diem A,B,C,D sao cho 3 diem A,B,C thang hang, 3 diem B,C,D thang hang, 3 diem C,D,E khong thang hang
a) Giai thich vi sao 3 diem A,B,D thang hang
b) Tren hinh ve hay tim diem nam giua 2 diem con lai
Cho 3 diem A,B,C thang hang .Trong ba diem A,B,C diem nao nam giua hai diem con lai.Neu AC=2,CD=5,AB=3
Cac ban viet loi giai ro rang nha dung viet dap o luon thank you
A,B,C thẳng hàng mà AC<AB => C nằm giữa A,B => CB=AB-AC=3-2=1CM Vì CB<CD => B nằm giữa C và D
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biet ba diem a,b,c thang hang diem c nam giua hai diem con lai co the chi do do dai cua hai doan thang ma biet dc ba do dai ab,ac,bc ko giai thich cach lam cua ban
a/Cho ba diem A,B,C thang hang thi co may truong hop hinh ve?
b/Trong moi truong hop,co may diem nam giua hai diem con lai?
c/Hay noi cach ve ba diem khong thang hang