如图,在
中,
,
,
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/5f03bb48-01eb-4b84-abe6-7bde4bc436ab.png?resizew=218)
(1)用尺规作出
的垂直平分线交
于点
,交
于点
;
(2)若
,求
的长度
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/5f03bb48-01eb-4b84-abe6-7bde4bc436ab.png?resizew=218)
(1)用尺规作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402c0f9eecfcdf73f9e87ca82a6f2c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
更新时间:2023-01-07 08:31:56
|
相似题推荐
解答题-作图题
|
适中
(0.65)
【推荐1】尺规作图是理论上接近完美的作图方式,乐乐很喜欢用尺规画出要求的图形.在下面的
中,请你也按要求用尺规作出下列图形(不写作法,但要保留作图痕迹)并填空.
(1)作出
的平分线交
边于点
;
(2)作出
边上的垂直平分线
交
于点
;
(3)连接
,若
,则
的度数为 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e5f736b1195fef1d2d300168a795f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47700cc543eab9096592210a67a313c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96dbf32210f81599fa2a02983ac84cac.png)
![](https://img.xkw.com/dksih/QBM/2020/4/19/2445036039962624/2446182500745216/STEM/addeb9b7-bb88-4dfe-9800-8fa526b91453.png)
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解答题-证明题
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适中
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名校
【推荐2】在
中,
,点
在
上,
的垂直平分线交
于点
的垂直平分线交
于点
,连接
.
;
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8d7f2a92c2346150e2507e0f62dcda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d5cc9b2bcda708dad4ac0d2efe8606e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3efffb3e6a571832b723b3c5795b8e8c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf0c919ba7cd65f68ce7decbc066f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
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解答题-作图题
|
适中
(0.65)
名校
【推荐1】如图,在
中,
,
.
为对角线且其中一个顶点在
边上的菱形;(尺规作图,保留作图痕迹)
(2)求(
)中所求作菱形的边长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcb21cb6c05b16f5407acaa2cc41139e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
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解答题-作图题
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适中
(0.65)
名校
【推荐2】如图,
平分
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/25/8b5887af-a221-42ad-96c3-dd710fb61755.png?resizew=211)
(1)请用尺规作图法,作
的垂直平分线
,垂足为E,交
于F;(不要求写作法,保留作图痕迹)
(2)在(1)条件下,连接
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35b30bca5d706eb899b4a5479fa3dca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/25/8b5887af-a221-42ad-96c3-dd710fb61755.png?resizew=211)
(1)请用尺规作图法,作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)在(1)条件下,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1a13346c7971d064ef14cecd9a9ed5.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】如图(1)是某种台灯的示意图,灯柱BC固定垂直于桌面,AB是转轴,可以绕着点B按顺时针方向转动,AB=10cm,BC=20cm,圆锥形灯罩的轴截面△APQ是等腰直角三角形,∠PAQ=90°,且PQ∥AB.转动前,点A、B、C在同一直线上.
![](https://img.xkw.com/dksih/QBM/2013/6/6/1573661821026304/1573661827055616/STEM/15a74d7c86214c75aa4cf61ffd5eb87a.png)
(1)转动AB,如图(2)所示,若灯心A到桌面的距离AM=25cm,求∠ABC的大小;
(2)继续转动AB,当光线AP第一次经过点C,求此时灯心A到桌面的距离AM长.(假设桌面足够大)
![](https://img.xkw.com/dksih/QBM/2013/6/6/1573661821026304/1573661827055616/STEM/15a74d7c86214c75aa4cf61ffd5eb87a.png)
(1)转动AB,如图(2)所示,若灯心A到桌面的距离AM=25cm,求∠ABC的大小;
(2)继续转动AB,当光线AP第一次经过点C,求此时灯心A到桌面的距离AM长.(假设桌面足够大)
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解答题-问答题
|
适中
(0.65)
【推荐1】四边形ABCD内接于
,AC为其中一条对角线.
![](https://img.xkw.com/dksih/QBM/2022/4/28/2968017833533440/2973725048643584/STEM/3e471559-1ed5-4cb4-bca7-d0b99f1ad5a7.png?resizew=241)
(1)如图①,若
,
,求
的度数;
(2)如图②,若AD经过圆心O,CE为
的切线,B为
的中点,
,求
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/2022/4/28/2968017833533440/2973725048643584/STEM/3e471559-1ed5-4cb4-bca7-d0b99f1ad5a7.png?resizew=241)
(1)如图①,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c622d636e8332a6442c8b336ab3f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a16dc02090b6e9263555061f14fbc8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
(2)如图②,若AD经过圆心O,CE为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ba3dab77adb5abd0d63f70e4d18d0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db866ecc0c098bfc32ec8a43b65bdd58.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】如图,正方形
中,在
延长线上取一点
,使
,连接
,则
的度数是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ac49caae8e3b8869d19beeff98966e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1428d4a45e569bc6e39005ea3c9c8ec0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/18/7a6ea981-2c89-4ae3-9b47-0e13890df126.png?resizew=144)
您最近一年使用:0次