已知长方体
的底面
是边长为1的正方形,侧棱
,在矩形
内有一动点
满足
,且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a68ca3817597ebe6d95eac0294b01c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/540ccd15435aa2d59e809d6a28fb2467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/867b192236d84466735ca8d63d3f7d06.png)
A.![]() | B.![]() | C.![]() | D.2 |
更新时间:2024-05-26 19:39:13
|
相似题推荐
单选题
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名校
【推荐1】如图,
是棱长为
的正方体
的棱
的中点,沿正方体表面从点
到点
的最短路程是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/bf4c0d7a-9a61-49bc-baef-b636e52b8a51.png?resizew=171)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2713679aa5f12e1d89d3a3d98b65212e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/bf4c0d7a-9a61-49bc-baef-b636e52b8a51.png?resizew=171)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图是一个正方体的平面展开图,则在该正方体中正确的关系是( )
![](https://img.xkw.com/dksih/QBM/2022/3/21/2941062915358720/2943233307844608/STEM/6c5cd964-79e8-4efd-b547-8538b9b819c2.png?resizew=180)
![](https://img.xkw.com/dksih/QBM/2022/3/21/2941062915358720/2943233307844608/STEM/6c5cd964-79e8-4efd-b547-8538b9b819c2.png?resizew=180)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】在
中,
为线段
的一个三等分点,
.连接
,在线段
上任取一点
,连接
,若
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/fc686fd85d7d8b6aa435a5bdded6d810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e16be59226d6815f5ebb41f9250b96b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
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【推荐2】已知
为线段
上的任意一点,
为直线
外一点,
关于点
的对称点为
,若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e06bb34ae76aa6ce7f802f19884bc1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d6df06a5b85848dc4fa33327f8e07.png)
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【推荐1】立体几何中,用一个平面去截一个几何体得到的平面图形叫截面.已知正方体
的内切球
的直径为
过球
的一条直径作该正方体的截面,所得的截面面积的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b289750716fa6f5fd41a862d6516dc6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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【推荐2】木工师傅把一个长方体形的木块切去一部分,得到一个三视图如图所示的新木件,则这个木件的切面面积为( )
![](https://img.xkw.com/dksih/QBM/2021/3/19/2681069073391616/2683902181613568/STEM/548495ed-1140-45b4-bd06-c2fb934fed89.png?resizew=240)
![](https://img.xkw.com/dksih/QBM/2021/3/19/2681069073391616/2683902181613568/STEM/548495ed-1140-45b4-bd06-c2fb934fed89.png?resizew=240)
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