1 . 如图所示,网络纸上每个小格都是边长为1的正方形,粗线画出的是一个几何体的三视图,则该几何体的表面积为
![](https://img.xkw.com/dksih/QBM/2017/3/30/1654877924851712/1655056308510720/STEM/33e3421e42b54aee80ba59cbab1fe719.png?resizew=158)
![](https://img.xkw.com/dksih/QBM/2017/3/30/1654877924851712/1655056308510720/STEM/33e3421e42b54aee80ba59cbab1fe719.png?resizew=158)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-03-26更新
|
1397次组卷
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3卷引用:2017届河北省石家庄市第二中学高三下学期模拟联考数学(文)试卷
2 . 如图,直角三角形
中,斜边
边上的垂直平分线
交
于
,交
于
,现沿
折成一个三视图如下的四棱锥
,则在四棱锥
中,给出下列判断:
①
;②平面
平面
;
③
;
④四棱锥
的外接球表面积为
.
其中正确的判断有______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f3f0c04f67c563f16e0ea7ba6516d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f3f0c04f67c563f16e0ea7ba6516d3.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91e83004f1899951bf86c9a56a1f1cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb7e9ad5486cf1c5e506b20c5469e8.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074253791c70e7eba33de5503092d52d.png)
④四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f3f0c04f67c563f16e0ea7ba6516d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63dfa1a457921f589e7d27fffbf8d75e.png)
其中正确的判断有
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/1fbe9ad6-7cf5-49c1-a396-bbe6d4c8ed69.png?resizew=264)
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2019-06-25更新
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214次组卷
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2卷引用:2019年湖南省怀化市第三次模拟数学(理)试题
名校
3 . 如图,已知三棱锥
的底面是等腰直角三角形,且
,侧面
底面
,
,则这个三棱锥的三视图中标注的尺寸
,
,
分别是( )
![](https://img.xkw.com/dksih/QBM/2017/11/3/1809205152620544/1809809239973888/STEM/32f527ad24f14b83b0a04d8f1241ab3c.png?resizew=160)
![](https://img.xkw.com/dksih/QBM/2017/11/3/1809205152620544/1809809239973888/STEM/814654de526c4508820ada1542b9605f.png?resizew=170)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bfdb6a8faa47e25330c0cbd0c07798a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://img.xkw.com/dksih/QBM/2017/11/3/1809205152620544/1809809239973888/STEM/32f527ad24f14b83b0a04d8f1241ab3c.png?resizew=160)
![](https://img.xkw.com/dksih/QBM/2017/11/3/1809205152620544/1809809239973888/STEM/814654de526c4508820ada1542b9605f.png?resizew=170)
A.![]() ![]() ![]() | B.![]() ![]() ![]() | C.![]() ![]() ![]() | D.![]() ![]() ![]() |
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2017-11-04更新
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935次组卷
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3卷引用:2016-2017学年河南省豫南九校高一下学期期中联考数学试卷
4 . 如图,网格纸上小正方形的边长为1,粗实线及粗虚线画出的是某多面体的三视图,则该多面体外接球的表面积为__________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/1a30e827-3c97-4af5-af91-0d949fa3fa1d.png?resizew=188)
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2016高一·全国·课后作业
5 . 如图,已知某组合体的正视图与侧视图相同(其中AB=AC,四边形BCDE为正方形),则该组合体的俯视图可以是________ .
![](https://img.xkw.com/dksih/QBM/2016/11/29/1836136172642304/1826268740567040/STEM/afc5e25a-cb49-4e32-8988-b209e78bbd2d.png?resizew=124)
![](https://img.xkw.com/dksih/QBM/2016/11/29/1836136172642304/1826268740567040/STEM/afc5e25a-cb49-4e32-8988-b209e78bbd2d.png?resizew=124)
![](https://img.xkw.com/dksih/QBM/2016/11/29/1836136172642304/1826268740567040/STEM/ffc0cb0b-2bda-4947-b97e-4ee76265d3a9.png?resizew=218)
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