如图,在
中,
,
垂直平分
,交
于点
,交
于点
,且
,
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e792b0ef3d542237ed0903194597651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9666188e21ea5c4b24d5248e87dc7463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/387eca31-9307-4160-b1a1-91a54d31236b.png?resizew=176)
更新时间:2024-03-16 15:22:13
|
相似题推荐
解答题-证明题
|
适中
(0.65)
名校
【推荐1】如图,
,
,点
在
边上,
.
![](https://img.xkw.com/dksih/QBM/2022/4/13/2957148895420416/2961569781342208/STEM/461b1cbc-1d4e-40af-a00f-6ed9663973f3.png?resizew=184)
(1)求证:
;
(2)若
,则
__________度;
(3)若
,
为
中点,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b4908b37cf23de34d38ae7a0bff278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45087cde2d66377517a3fce5553b35.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/0e53497af8899cb299d762f1a4f46a55.png)
![](https://img.xkw.com/dksih/QBM/2022/4/13/2957148895420416/2961569781342208/STEM/461b1cbc-1d4e-40af-a00f-6ed9663973f3.png?resizew=184)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51fa2f2683d9572f3d40b41207bbf3c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/991d28fec5464134cececebc681e54ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d63783f365e666ace307cadcaba60fa.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d888e40f68fe8a24d5dc9c749024808.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/0761165f1176f3a5fe4f7b052832316d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐2】如图1是一个五角星.
(1)计算:∠A+∠B+∠C+∠D+∠E的度数.
(2)当BE向上移动,过点A时,如图2,五个角的和(即∠CAD+∠B+∠C+∠D+∠E)有无变化?说明你的理由.
(3)如图3,把图2中的点C向上移到BD上时,五个角的和(即∠CAD+∠B+∠ACE+∠D+∠E)有无变化?说明你的理由.
(1)计算:∠A+∠B+∠C+∠D+∠E的度数.
(2)当BE向上移动,过点A时,如图2,五个角的和(即∠CAD+∠B+∠C+∠D+∠E)有无变化?说明你的理由.
(3)如图3,把图2中的点C向上移到BD上时,五个角的和(即∠CAD+∠B+∠ACE+∠D+∠E)有无变化?说明你的理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/5/27/3875ca50-6f36-4b1f-a0c5-df16823cd629.png?resizew=451)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】如图,
中,
垂直平分
,交
于点
,交
于点
,
,垂足为
,且
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/3/d8a94547-efcd-4d92-8d16-10f7de19bcf4.png?resizew=202)
(1)求证:
;
(2)若
的周长为
,
,则
的长为多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e792b0ef3d542237ed0903194597651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/3/d8a94547-efcd-4d92-8d16-10f7de19bcf4.png?resizew=202)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd1f3b67f266fc83774bc59ef8b90a1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbe9f7abf7bcf4e1aa2579cd191d7761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63c2a7ec84e71656744ebf332a7e647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
真题
名校
【推荐2】如图,
是菱形
的对角线.
的垂直平分线,分别与
,
交于点
,
(尺规作图,不写作法,保留作图痕迹);
(2)在(1)的条件下,连接
,若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.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/a0ed1ec316bc54c37c4286c208f55667.png)
(2)在(1)的条件下,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319a01218514917e446dfc807a625ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/741ea7b92508b200082ad0e9fee7ee46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d59511c474942171fb685fc3f8dfd2d.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知
是⊙
的直径,弦
与
相交于点
,
.
(1)如图①,若
为
的中点,求
和
的大小;
(2)如图②,过点
作⊙
的切线,与
的延长线交于点
若
求
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d613b4c23659867485a8d8256655bfc5.png)
(1)如图①,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246a86f34603eaf2e6a948681b831b0d.png)
(2)如图②,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/515cd8e17b4bd9545a4fdb82d0f154a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b5819f80ba4a0db18c19cac49f8023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19768d8c55deb4973820aeab7a224e6a.png)
![](https://img.xkw.com/dksih/QBM/2020/6/22/2490070379462656/2491525732179968/STEM/4972357adb3a4c95a275f6a2eab3cbec.png?resizew=427)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,
和
都为等腰直角三角形,
,点E在
上且与
的中点O不重合,连接
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed3bcb1d5b5cf32aa1d85c8a0ff5be30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea5cf7878cc655b6591cbc227fc823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5639104d5f53e1d4b1ba4847b167264f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/cccc2dd2-070d-48c7-8daa-1c8e8f88cc1f.png?resizew=143)
您最近一年使用:0次