如图1,在
中,过点C作
于点D,过
上一点F作
于点F,交
于点H,交
于E,且
.
(1)若
,且
,求线段
的长.
(2)如图2,过E作
与点G,连接
,求证,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7044476eb6e90a781518c230f4637bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e803780fc678e4121636018760f6e4e1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df049f15adb6667113ceee3a6638cd0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca669a2f745677934f4267b248340fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(2)如图2,过E作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827beb23a9fe02a8b588645bcb82ce67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8c9cf7b716ae4a786845a4d7b931072.png)
![](https://img.xkw.com/dksih/QBM/2020/12/12/2619579670052864/2620618178297856/STEM/27a8e906-576f-4f36-a5af-3e8c421dc3b4.png?resizew=551)
更新时间:2020-12-23 22:44:14
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】已知:三角形
,过点B作直线
,
.
(1)如图1,求证
;
(2)如图2,
平分
交直线
于点F,
平分
交
于点G,求
的度数;
(3)如图3,在(2)的条件下,点H在直线
上,连接
,且
,若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105068b25f5a63af32f4082cfe08691e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91c6f498177c0edb2c8345417baa9b70.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/20/4159fe91-64e0-4686-af32-3239b60b0459.png?resizew=509)
(1)如图1,求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/191c1d68303fa3c15a3aae2cfa752878.png)
(3)如图3,在(2)的条件下,点H在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c6827fd151bb89aaf2992480d95abf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187b84fa21d1cd7fa6cd453433fa9551.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】探究题:【(1)、(2)问写出理由,(3)、(4)直接写结论】
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/5a429367-b566-408a-aaf3-ff34a455b0cb.png?resizew=403)
(1)如图1,若AB
CD,则∠B+∠D=∠BED,说明理由.
(2)反之,若∠B+∠D=∠BED,直线AB与CD有什么位置关系?说明理由.
(3)若将点E移至图2的位置,此时∠B,∠D,∠BED之间有什么关系?
(4)若将点E移至图3的位置,此时∠B,∠D,∠E之间的关系又如何?
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/13/5a429367-b566-408a-aaf3-ff34a455b0cb.png?resizew=403)
(1)如图1,若AB
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9bfa68259d7a331be323b2038d628a.png)
(2)反之,若∠B+∠D=∠BED,直线AB与CD有什么位置关系?说明理由.
(3)若将点E移至图2的位置,此时∠B,∠D,∠BED之间有什么关系?
(4)若将点E移至图3的位置,此时∠B,∠D,∠E之间的关系又如何?
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
名校
【推荐1】如图,在8×8的方格纸中,
的三个顶点都在格点上.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/7514d133-d441-4aa7-9da3-b31c410a854e.png?resizew=282)
(1)在图1中画出
,使得
,且点D为格点.
(2)在图2中画出
,使得
,且点E为格点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/7514d133-d441-4aa7-9da3-b31c410a854e.png?resizew=282)
(1)在图1中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97e3555cd6c109962fecba3a677c5286.png)
(2)在图2中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/936f5f26aac7197d42a41081fb1fda0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99b50efb69a011b748efaf14f01ad3a.png)
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解答题-证明题
|
适中
(0.65)
【推荐2】如图,在平面直角坐标系中,
,已知
,
,
,点
在第一象限内,
,
的延长线与
的延长线交于点
,
与
交于点
.
![](https://img.xkw.com/dksih/QBM/2021/1/23/2642185398214656/2645023681806336/STEM/35b09d13-784a-4e81-811c-9f31f3758843.png)
(1)
的度数为________.
(2)求点
的坐标.
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212bfbd5575772ca36d6fc3e7b246e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241ce9bd28046ce9b90f43b391132884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27149c9ff20937492950f42084caa019.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae21af7fed9542fc7b83baa24f28060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad4ab29c466d4d8ca14eda2850e11247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/2021/1/23/2642185398214656/2645023681806336/STEM/35b09d13-784a-4e81-811c-9f31f3758843.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f9341d51c827a29a4a0b0b3dded16c.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ff398bdaa4eb5a274f86c0d8b77ef2.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图,正方形
中,E是
边上一点,连接
,过点B作
于点G,交
于点F.
(1)求证:
;
(2)若正方形
的边长
,点E是
的中点,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cbfc35fc915ac7d4dc017e60ccdecbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/3/40efc55b-a45a-41e0-bbfc-3d619a66407d.png?resizew=139)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c55ee522f41c43253050e92b3c8de31.png)
(2)若正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8848993999899c0005544bb8838832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐2】如图,已知
为等腰直角三角形,
,
.点D为
内一点,且有
,点P为
中点,连接
.
(1)连接
并证明
;
(2)写出线段
之间的数量关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9ae4ef7714ec7519c75eee5fee7b17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/22/edd025bd-c338-49f6-a4ba-cae1d2e3a705.png?resizew=222)
(1)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07e16d6aeaf1910d86b297b90295606f.png)
(2)写出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa3de5366a0b24ca89a1dffb7b1feb02.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】如图,
中,
于
,
于
,
与
相交于点
.
![](https://img.xkw.com/dksih/QBM/2021/3/30/2688960296189952/2689131050033152/STEM/448e2004-16d3-411e-a020-6ba9a71c6057.png)
(1)如图1,
,求
的度数;
(2)如图2,
,
和
的平分线相交于点
,求
的度数;
(3)如图3,点
为
的中点,连接
和
,请判断
的形状,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f913298f0fae9f55377a8deab9f099dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2021/3/30/2688960296189952/2689131050033152/STEM/448e2004-16d3-411e-a020-6ba9a71c6057.png)
(1)如图1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77282d5b97a60264cf15fb74b48e4b59.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e99c17d72c203b50802f19d4731545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9222c2a8519ef3f4e80e8ca3d6a72b3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec412ebd940d71b983ce4877e3401ee.png)
(3)如图3,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f541f7ae7c39082d202efd28805c54e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4336efb6d0689ddad55295e336340d3.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】已知:正方形
中,
是
的中点,
是
上一点,且
,
、
交于点
,连接
,
平分
交
于
,连接
.
(1)求证:
;
(2)求证:
是等腰直角三角形.
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/869dbfaf24d441c4ce3a2b8db86cd2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f083bd4fa691292b17f8a380166b0c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/19/6792d4e2-21eb-49df-8731-4496462ac682.png?resizew=132)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3796f46a7983b6ac8a29bf0b2a47d45.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/978a7a0baaa1a4e7cdac80a6a91a0ce6.png)
您最近一年使用:0次