cho 3 diem thang hang c,d,e hoi hai diem nao nam giua 2 diem con lai neu cd+ce=de
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2 tháng 11 2018
Vì điểm E nằm giữa 2 điểm D và C nên ta có
8 - 5,5 = DC hay DC = 3,5
Trong điểm D,C,E thì điểm C nằm giữa 2 điểm D và E
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19 tháng 11 2017
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4 tháng 6 2022
a: Trên tia Oa, ta có: OC<OD
nên điểm C nằm giữa hai điểm Ovà D
b: Ta có: C nằm giữa O và D
nên CO+CD=OD
hay CD=2,5cm
c: Ta có: C nằm giữa O và D
mà CO=CD
nên C là trung điểm của OD
d nằm giữa hai điểm còn lại k mình nhé
diem c nam giua 2 diem con lai