在△ABC中,点D,E分别在AB,AC上,下列条件中,不能判定DE∥BC的是( )
A.AD=5,AB=8,AE=10,AC=16 |
B.BD=1,AD=3,CE=2,AE=6 |
C.AB=7,BD=4,AE=4,EC=3 |
D.AB=AC=9,AD=AE=8 |
更新时间:2017-11-15 22:44:26
|
【知识点】 几何证明选讲
相似题推荐
单选题
|
适中
(0.64)
【推荐1】如图所示,已知⊙O的半径为5,两弦AB、CD相交于AB的中点E,且AB=8,CE∶ED=4∶9,则圆心到弦CD的距离为
![](https://img.xkw.com/dksih/QBM/2014/3/25/1571575004364800/1571575009558528/STEM/4227f57634a04273b68fcbb7a0d43dfa.png)
![](https://img.xkw.com/dksih/QBM/2014/3/25/1571575004364800/1571575009558528/STEM/4227f57634a04273b68fcbb7a0d43dfa.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.64)
【推荐2】如图所示,
分别是
的边
上的点,
,且
,那么
与四边形
的面积比是
![](https://img.xkw.com/dksih/QBM/2017/1/25/1619472519102464/1619472519200768/STEM/714432ccc69946a68d8f239a14205df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a51949f48ee8cf746851ba779b078e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d54431bbb28ebd98db5c1dc6083a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a078495ba47076ccaa28b46f765d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35542f1fad40fc3f99c532310b1cc1d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f460edcced5597615113c0fdc95b1dfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce735bef8c7fc6a1ddcebd449e38f7e.png)
![](https://img.xkw.com/dksih/QBM/2017/1/25/1619472519102464/1619472519200768/STEM/714432ccc69946a68d8f239a14205df2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次