如图,已知
和
均为等边三角形,点
在
边上,
与
相交于点
,
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/7/d3c09265-4b8b-4a68-93e5-daadd1c124f1.jpg?resizew=130)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d2a516d3c38c88fc7f608f5fbfea47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/7/d3c09265-4b8b-4a68-93e5-daadd1c124f1.jpg?resizew=130)
A.1 | B.2 | C.3 | D.4 |
更新时间:2023-12-21 19:06:36
|
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名校
【推荐1】如图,过边长为4的等边
的边
上一点P,作
于E,Q为
延长线上一点,当
时,连
交
边于D,则
的长为( )
![](https://img.xkw.com/dksih/QBM/2023/11/16/3369166723956736/3371844352663552/STEM/8ea81e79ba234c0e9ac955f0841e42a0.png?resizew=182)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bc56fdf70e65bd88980c64af96b83da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfa93b36319dccba34cd63404d719018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/2023/11/16/3369166723956736/3371844352663552/STEM/8ea81e79ba234c0e9ac955f0841e42a0.png?resizew=182)
A.![]() | B.2 | C.![]() | D.![]() |
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【推荐2】如图,点
是
的中点,
于点
,点
是
上的一个动点(不与
重合),
分别是
,
的中点,若
,则
的长( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/13/4fc0f71a-d448-4668-a715-1b54ee7e2d1e.png?resizew=278)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e14f419e14bc30fe2fada469a0fbbb64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3236e8737e7856627067c0a9606635f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6019e9835ff4c530ee057dd621882177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/13/4fc0f71a-d448-4668-a715-1b54ee7e2d1e.png?resizew=278)
A.等于6 | B.随点![]() |
C.随点![]() | D.随点![]() |
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【推荐1】如图,
中,
,且
,则
被分成的三部分面积之比
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/5/251a60d7-72d6-4ab5-87e9-783739c141af.png?resizew=173)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d28654709435312815438c1b1201c3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b6a88dc18a52197d84be24cf4b2aff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4905b0115a1a4efa8470316a40a7d02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/5/251a60d7-72d6-4ab5-87e9-783739c141af.png?resizew=173)
A.1∶1∶1 | B.1∶2∶3 | C.1∶3∶5 | D.![]() |
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【推荐2】如图,四边形
内接于
,
为直径,
的平分线
交
于点E,点F在
的延长线上,
.有如下五个结论:①
;②
;③
;④
;⑤四边形
的面积为
,则上列说法中正确的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4474c82ae786e175b5e603b81bc8018d.png)
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A.2个 | B.3个 | C.4个 | D.5个 |
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