如图,已知在
中,
的垂直平分线
交
于点
,连接
.
若
,求
的度数;
若
求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bed1b015150b0e23bf89383508fe129.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dafe0912263fb91a8cec98f77b58a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e142544a6d4e6851096afbd3cbad2fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b759cd9a7d584ef488199db4ed54d2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/2020/11/23/2599128139546624/2603942475472896/STEM/33d77638-df31-46fd-be46-6630c9dfddd3.png)
更新时间:2020-11-30 09:17:26
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】如图所示,等腰直角
中,
.
(1)如图1所示,若D是
内一点,将线段
绕点C顺时针旋转
得到
,连接
,
,猜想线段
与
的关系并说明理由;
(2)如图2所示,若D是
外一点,将线段
绕点C顺时针旋转
得到
,且
,求证:
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/64fe88c5-aa09-489e-9db2-f07da4b84317.png?resizew=284)
(1)如图1所示,若D是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(2)如图2所示,若D是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be5fc6ead6416492c231c320a5486f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e7bdd33ad2697cfb58d12fc41afdd8.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】在
中,
垂直平分
,分别交
,
于点
,
,
垂直平分
,分别交
,
于点
,
.
(1)如图1,若
,
,则
;
(2)如图1,若
,求
的度数;
(3)如图2,若
,求
的度数;
(4)通过以上的探索过程,直接写出
的度数与
,
的关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa29fe6cd9eb51c184f6299d437375cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/19/581f1967-e5f6-4376-93e0-84909feed3ef.png?resizew=275)
(1)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/664a0514367691413592e28b540a80a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88a7aea0d7e216134f71068f2ed47cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7943b632b1e03c4874a254c2e3521589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
(2)如图1,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05edf2f62756d5b29c094ea109f3d2c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d5a76a3083bf8f14b44123ffa4d63eb.png)
(3)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb4f23051bed9ea5956205f517af1708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d5a76a3083bf8f14b44123ffa4d63eb.png)
(4)通过以上的探索过程,直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d5a76a3083bf8f14b44123ffa4d63eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52725baa26f9ceb7fb0983ebb868e925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e8f6faf46c448fe8d838fde1af495b.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐1】如图,在
中,
,
是
边上的中线,且
,
的垂直平分线
交
于F,交
于M.
(1)求
的度数.
(2)证明:
是等边三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c3613fa43a055100f9162bf4ec665b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55b6ce55e67f6e95e616eaf1ca3f6f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/24/b579f99b-7955-4f37-874e-af0479e66593.png?resizew=175)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】如图,已知△ACE是等腰直角三角形,B为AE上一点,△ABC经过旋转到达△EDC的位置,问:
(1)旋转中心是哪个点?旋转了多少度?
(2)若已知∠ACB=20°,求∠CDE、∠DEB的度数.
(1)旋转中心是哪个点?旋转了多少度?
(2)若已知∠ACB=20°,求∠CDE、∠DEB的度数.
![](https://img.xkw.com/dksih/QBM/2021/8/11/2783624026161152/2787481049710592/STEM/c1b226d2cd73414d8c11a6778acc9c13.png?resizew=133)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,在正方形
中,
是
边上任意一点(不与点
,
重合),
,垂足为点
,交
于点
,交
于点
,连接
.
![](https://img.xkw.com/dksih/QBM/2020/11/2/2584235521802240/2585518395580416/STEM/373bd10ff27342b49f62f019dbcfa27a.png?resizew=157)
(1)①
与
的数量关系是______;
②当
为等腰三角形时,
______;
(2)当点
为
的中点时,求证:
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0972f8dc1e2a5720ea7bc57dfd9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/2020/11/2/2584235521802240/2585518395580416/STEM/373bd10ff27342b49f62f019dbcfa27a.png?resizew=157)
(1)①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1e7824b80a5f4251bc88899e04c8cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/863c4a2e68dae7f51ae92052e830f73b.png)
(2)当点
![](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/ecca5afe13bd518c0614a3710ce90480.png)
您最近一年使用:0次