如图,在直三棱柱
中,
,点
是
的中点,则点
到平面
的距离是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca248c05ba166ac40d795f8481459ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935fe3125f247b7bea4f065ce9ad985.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/16/2bbded8f-8ebe-414c-8394-70503f74b792.png?resizew=150)
更新时间:2023-10-15 19:40:04
|
相似题推荐
填空题-单空题
|
适中
(0.65)
名校
【推荐1】在正方体ABCD−A1B1C1D1中,P为AA1中点,Q为CC1的中点,AB=2,则三棱锥B−PQD的体积为__________ .
您最近一年使用:0次
【推荐2】如图,在正四棱锥
中,
,
,动点
,
分别在线段
,
上,且满足
,现给出下列结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/4b6dde4d-069f-47ef-ac4c-34a45943be31.png?resizew=160)
①四棱锥
的体积不变;
②平面
平面
;
③三棱锥
体积的最大值为
;
④三角形
可能是锐角三角形.
其中正确结论的序号为______ .(写出所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd3eb538f36e6e722e4ce125266b99b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/986a41e3ae80e591e3efeb97a59555e9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/4b6dde4d-069f-47ef-ac4c-34a45943be31.png?resizew=160)
①四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75764c506b7ff847a7960ed28371f49b.png)
②平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f020ca4ad44801691235958e253907d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
③三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb4114ae425d31ea6b554b328163a14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
④三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d246f9eceab371ebf47a47c2f11a4ad.png)
其中正确结论的序号为
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
解题方法
【推荐1】如图,已知AB,CM分别为圆柱上、下底面的直径,且AB=2,圆柱的高为
,
,则点M到平面ABC的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f304789d5bcf31d9998fd4d920cd157.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/6/d263dc6d-244a-41d0-a0d2-905138437a02.png?resizew=129)
您最近一年使用:0次
填空题-双空题
|
适中
(0.65)
【推荐2】已知正方形
的边长为
,
平面
,且
,
,
分别为
,
的中点.则点
到平面
的距离为_____ ,直线
到平面
的距离_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bec03e804f0cea1db5cde2aa185056a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d246f9eceab371ebf47a47c2f11a4ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d246f9eceab371ebf47a47c2f11a4ad.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/e4f3fac5-49f3-4cd4-a4f7-0af8c75d089d.png?resizew=185)
您最近一年使用:0次