如图,
平分
.
(1)求证:
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353fed8ac16c424f0131dec75167c42f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/24/bde3fd9f-e0a9-4739-a88a-17c0577f20ae.png?resizew=204)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c00e83a504f7b934d20bf50312afadbe.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b5535d4cbff891841e87564c1eb342.png)
更新时间:2023-10-22 10:31:36
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,在四边形
中,
,过
作
交
于点
,过
作
交
于
,且
.请你在不添加辅助线的情况下,添一个条件______,使得四边形
是菱形,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c220eadc312101e2fb89dfe920f7b30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac18b0388014ae20b2add2975ef56aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/11/f50abbaf-59ab-481e-9939-187dfd1c693d.png?resizew=180)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】已知,如图,BD是∠ABC的平分线,AB=BC,点P在BD上,PM⊥AD,PN⊥CD,垂足分别是M、N.
(1)求证:PM=PN;
(2)联结MN,求证:PD是MN的垂直平分线.
(1)求证:PM=PN;
(2)联结MN,求证:PD是MN的垂直平分线.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/14/52dfcd61-3ebe-4d05-94da-829675278f85.png?resizew=173)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】已知△ABC,AB=AC,BD是∠ABC的角平分线,EF是BD的中垂线,且分别交BC于点E,交AB于点F,交BD于点K,连接DE,DF.
![](https://img.xkw.com/dksih/QBM/2020/2/24/2405502371700736/2406454179643393/STEM/6b9f8660844b480db1d7ceda571a00cf.png?resizew=230)
(1)证明:DE//AB;
(2)若CD=3,求四边形BEDF的周长.
![](https://img.xkw.com/dksih/QBM/2020/2/24/2405502371700736/2406454179643393/STEM/6b9f8660844b480db1d7ceda571a00cf.png?resizew=230)
(1)证明:DE//AB;
(2)若CD=3,求四边形BEDF的周长.
您最近一年使用:0次