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HN
5
![](https://rs.olm.vn/images/avt/0.png?1311)
17 tháng 11 2016
d nằm giữa hai điểm còn lại k mình nhé
![](https://rs.olm.vn/images/avt/0.png?1311)
19 tháng 11 2017
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G
0
![](https://rs.olm.vn/images/avt/0.png?1311)
Điểm C vì CD<CE<DE
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