如图,在正方形ABCD的对角线AC上取一点E,使得
,连接BE.
(1)证明:
;
(2)延长BE至F,使
,连接CF,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c239a56587c675b532347546b48ea09a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/f902101f-244a-446d-a4d8-e0d24c1cce53.png?resizew=160)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba11242dcc61d3c7c3555b598b5fdc89.png)
(2)延长BE至F,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d197ea8c1c8bbdf5edade431388eb713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a2d014899fa3341b58348530f3d98.png)
更新时间:2023-11-27 10:47:48
|
【知识点】 图形的性质
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】如图,在Rt
中,
,且
,
是
的中点,以
为直径作一圆
;连接
并延长至
,使
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/8dd8cd29-9c14-4d25-9eb2-901a5d84f408.png?resizew=115)
(1)求证:直线
是圆
的切线;
(2)若圆
与线段
相交于不同于
的点
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc130e4f2499cc620a0df6542d8127b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad730736a2951a83c1a2aaf5d860f3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/8dd8cd29-9c14-4d25-9eb2-901a5d84f408.png?resizew=115)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若圆
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
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解答题-证明题
|
适中
(0.65)
名校
【推荐2】如图,点
是正方形
的边
上一动点(异于
),连
,以
为对角线作正方形
与
交于点
,连
.
三点共线;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526768fab505a5637e515731c9940380.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9c15e609c856cb7856d6101aa198fef.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ab52edccf02d432e0aaa4542a147bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/956c4a03127f33e7fb7acc3476f717ce.png)
您最近一年使用:0次