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已知正方体ABCD-A1B1C1D1,O是底ABCD对角线的交点.求证:C1O∥面AB1D...
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![](https://img.xintiku.com/upload/43/ad/43ad40888cf31bf98658af331fb7b1fa.png)
已知正方体ABCD-A
1B
1C
1D
1,O是底ABCD对角线的交点.求证:C
1O∥面AB
1D
1.
相关试题
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![](https://img.xintiku.com/upload/15/2b/152bdca69f902318f02aec75c39b1ed5.png)
已知正方体ABCD-A1B1C1D1,O是底ABCD对角线的交点.求证:
(1)C1O∥面AB1D1;
(2)A1C⊥面AB1D1.
-
![](https://img.xintiku.com/upload/c2/a3/c2a3f9aeb3ca5e576258aa93e6d2f0dc.png)
已知正方体ABCD-A1B1C1D1,O是底ABCD对角线的交点.求证:
(1)C1O∥面AB1D1;
(2)A1C⊥面AB1D1.
-
![](https://img.xintiku.com/upload/4e/03/4e03e0dc656f5d2e74113ff4e1a44366.png)
已知正方体ABCD-A1B1C1D1,O是底ABCD对角线的交点.求证:
(1)C1O∥面AB1D1;
(2)A1C⊥面AB1D1.
-
![](https://img.xintiku.com/upload/e3/48/e3481acbb33cf6b5cb81b23e61c0208d.png)
已知正方体ABCD-A1B1C1D1,O是底ABCD对角线的交点.求证:
(1)C1O∥面AB1D1;
(2)A1C⊥面AB1D1.
-
![](https://img.xintiku.com/upload/bc/cc/bcccd1e2afe2e26a55a01c0e8dae2ee3.png)
已知正方体ABCD-A1B1C1D1,O是底ABCD对角线的交点.求证:
(1)C1O∥面AB1D1;
(2)A1C⊥面AB1D1.
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![](https://img.xintiku.com/upload/13/d7/13d7ea2fe195c8aa108cefd92f335593.png)
已知正方体ABCD-A1B1C1D1,O是底ABCD对角线的交点.求证:
(1)C1O∥面AB1D1;
(2)A1C⊥面AB1D1.
-
![](https://img.xintiku.com/upload/82/6e/826e60a330ae6f57410b02208600cc2a.png)
已知正方体ABCD-A1B1C1D1,O是底ABCD对角线的交点.求证:
(1)C1O∥面AB1D1;
(2)A1C⊥面AB1D1.
-
![](https://img.xintiku.com/upload/54/ab/54abd1e53db5a446a6e412c9af2c103e.png)
已知正方体ABCD-A1B1C1D1,O是底ABCD对角线的交点.求证:
(1)C1O∥面AB1D1;
(2)A1C⊥面AB1D1.
-
![](https://img.xintiku.com/upload/a2/ea/a2ea5b35d9fc9f05ca857db457574062.png)
已知正方体ABCD-A1B1C1D1,O是底ABCD对角线的交点.求证:
(1)C1O∥面AB1D1;
(2)A1C⊥面AB1D1.
-
![](https://img.xintiku.com/upload/2e/6b/2e6bb8fd720895cf38b36a3dd67ee7c2.png)
已知正方体ABCD-A1B1C1D1,O是底ABCD对角线的交点.求证:C1O∥面AB1D1.