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1 . 如图所示,一个圆锥
的底面是一个半径为
的圆,
为直径,且
,点
为圆
上一动点(异于
,
两点),则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e5ef91fb27dd684a27ae7f1993cfba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace407933ee8a2bbf7f4663e5682ea97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() ![]() |
B.二面角![]() ![]() |
C.点![]() ![]() ![]() |
D.点![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-03-14更新
|
667次组卷
|
3卷引用:重庆市康德卷2024年普通高等学校招生全国统一考试高考模拟调研卷(四)数学试题
解题方法
2 . 在
中,由以下各个条件分别能得出
为等边三角形的有:______ .
①已知
且
;②已知
且
;
③已知
且
;④已知
且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
①已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d5b1b24e2d918646afd0e16e119698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5eeaa0e92dfcadcfe909e3b8f1251ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf0b9b24c44f56961262b7ed05b5f0cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b05d3b8f5c9df891ef6fbcaf12f43207.png)
③已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d5b1b24e2d918646afd0e16e119698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65c875691cec70bedee102d280f2f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08bab26aa5de284528b4dbeb636d6894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa1466856bf2570685d3629c1f813748.png)
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解题方法
3 . 一个长方体的盒子内装有部分液体(液体未装满盒子),以不同的方向角度倾斜时液体表面会呈现出不同的变化,则下列说法中错误的个数是( )
①当液面是三角形时,其形状可能是钝角三角形
②在一定条件下,液面的形状可能是正五边形
③当液面形状是三角形时,液体体积与长方体体积之比的范围是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8a76aad84431f66852da640cae6324f.png)
④当液面形状是六边形时,液体体积与长方体体积之比的范围是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcaaf5e74e2d937193bbe7a1465e898b.png)
①当液面是三角形时,其形状可能是钝角三角形
②在一定条件下,液面的形状可能是正五边形
③当液面形状是三角形时,液体体积与长方体体积之比的范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8a76aad84431f66852da640cae6324f.png)
④当液面形状是六边形时,液体体积与长方体体积之比的范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcaaf5e74e2d937193bbe7a1465e898b.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
名校
解题方法
4 . 在直三棱柱
中,
是
中点.
,
,
,
.则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/14/ee611973-4129-49e3-a3d5-6b04b85ca6f1.png?resizew=127)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d0fdc5a00ca0e857b89a7e1420df29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e60250139e00fae15208a3e0311ce0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/14/ee611973-4129-49e3-a3d5-6b04b85ca6f1.png?resizew=127)
A.点![]() ![]() ![]() |
B.异面直线![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() |
D.过![]() ![]() ![]() |
您最近一年使用:0次
2021-08-01更新
|
327次组卷
|
2卷引用:湖南省湘西自治州2020-2021学年高一下学期期末数学试题