如图,在
中,
,
,
![](https://img.xkw.com/dksih/QBM/2023/4/12/3214843411021824/3221453535027200/STEM/c07b5a1911c74943a8739ac0aaa54021.png?resizew=125)
(1)请用尺规作图法,作
的垂直平分线
,交
于点D,交
于点E(不要求写作法,保留作图痕迹);
(2)在(1)的条件下,连接
,求
的度数.
![](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/65c5840e0454fdec7d2158072c43b8db.png)
![](https://img.xkw.com/dksih/QBM/2023/4/12/3214843411021824/3221453535027200/STEM/c07b5a1911c74943a8739ac0aaa54021.png?resizew=125)
(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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)在(1)的条件下,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79cd9d0d73549e2944578f3513631ce5.png)
更新时间:2023-04-21 20:06:54
|
相似题推荐
解答题-证明题
|
较易
(0.85)
名校
【推荐1】如图,点
、
、
、
在同一条直线上,
,
,
.
(1)求证:
;
(2)若
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/967578d2c4086aef3fda57ed4cdae5c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a510a3eb906b3ef0760b0d1723d11ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da8fe8f5f8a3f17561d70652ad1172a.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca10806fc8c3c3efd6859f526b76900.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d777d15cd733338ecfd0ea63819f62c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608d90e3ed47046f051eb96724ecf275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e8c257f5615d30660cef4157c6b273.png)
![](https://img.xkw.com/dksih/QBM/2020/5/5/2456242550849536/2456816620879873/STEM/f59f8c12-0641-492d-9131-1b592f86f967.png?resizew=199)
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【推荐2】如图,将
绕点
顺时针旋转
得
,点
的对应点
恰好落在
的延长线上,连接
.AC,DE相交于点P.
(Ⅰ)求证:△ADB是等边三角形;
(Ⅱ)直接写出∠APD的度数______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe4bdc5d9e833b23a1b916c06fc1a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(Ⅰ)求证:△ADB是等边三角形;
(Ⅱ)直接写出∠APD的度数______.
![](https://img.xkw.com/dksih/QBM/2021/11/17/2853106572582912/2858076839919616/STEM/d415616c490d493bada6e841f3c9bbe5.png?resizew=181)
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解答题-作图题
|
较易
(0.85)
【推荐1】如图,在
中,
,请用尺规作图法,在
内部求作一点P,使
,且
(保留作图痕迹,不写作法)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e90ebbfd35536ca0ebc109e26591ec41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c383691e8d740830a865b12d66f7633.png)
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您最近一年使用:0次
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【推荐2】如图,在
中,
的垂直平分线交
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于点
,
.
,求
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(2)若
平分
,求证:
为等腰三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ee9bd02adf9c94a61f52e89d43c52b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解答题-作图题
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较易
(0.85)
名校
【推荐1】在
中,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/f0361f59-b40f-4265-b4bd-7f5195cdd2c4.png?resizew=170)
(1)求线段
的长;
(2)作边
的垂直平分线分别交
,
于点
和点
(利用尺规作图,保留作图痕迹);
(3)连接
,若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/9/f0361f59-b40f-4265-b4bd-7f5195cdd2c4.png?resizew=170)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)作边
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2b365fd3ae84b5355eaa01639e8baf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db0641078052bf1af17b4c5a01b9ccc.png)
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【推荐2】如图,在方格纸中,我们把每个小正方形的顶点称为格点,已知点A、B、C都在格点上,且每个小正方形的边长都为1.
![](https://img.xkw.com/dksih/QBM/2013/4/22/1573643357683712/1573643404730368/STEM/11ca8d7772d34d1aa0c9319dd7cd750b.png)
(1)画线段AB,并过点C作CD⊥AB,垂足为点D;
(2)连结AC、BC.
①求△ABC的面积;
②已知AB=5,求(1)中线段CD的长.
![](https://img.xkw.com/dksih/QBM/2013/4/22/1573643357683712/1573643404730368/STEM/11ca8d7772d34d1aa0c9319dd7cd750b.png)
(1)画线段AB,并过点C作CD⊥AB,垂足为点D;
(2)连结AC、BC.
①求△ABC的面积;
②已知AB=5,求(1)中线段CD的长.
您最近一年使用:0次
解答题-问答题
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(0.85)
【推荐1】如图,在
中,
,
,
,
平分
,交边
于点
,点
是边
的中点.点
为边
上的一个动点.
(1)
,
度;
(2)当四边形
为轴对称图形时,求
的长;
(3)若
是等腰三角形,求
的度数;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/5/23f57341-abc4-4c48-9a3d-37fe1bc76d5e.png?resizew=169)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32217457c4e96e2ef155cf15c1b65d97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386cda9f96731510d52ec18199e18286.png)
(2)当四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b5d53a22172ae2229fba8412c5ba46f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dc6b0f69ed7e3633248f6b1c093e874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd601617f0ab200d5c80c37ab41d7323.png)
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【推荐2】如图,在四边形ABCD中,P是对角线BD的中点,E,F分别是AB,CD的中点,AD=BC,∠PEF=18°,求∠PFE的度数.
![](https://img.xkw.com/dksih/QBM/2022/6/1/2991949746937856/3072010024067072/STEM/3197d3d73a80494b825ac04d16ce3db4.png?resizew=103)
您最近一年使用:0次