如图,在矩形
中,
,
,若
是边
的中点,连接
,过点
作
于点
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e00668f797c9ce25d0f07e8f4f33a4d.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/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7cc087c22e1fc1197236c71e5465d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2024-05-11 20:58:06
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解题方法
【推荐1】如图,已知
中,
,
,
,
,过点
作
的垂线,与
的延长线交于点
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b83449867520a496304f601cc0b608f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f6eed505f09e761f91808c4b9948dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d597605100bc7a8a47534f194005b07e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45e25fa43b3c765bd68a8316dc3413e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b46bef85a1743941ef3ec5d54cbbd22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321d9ee3d533e70963957b81d4c57a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198aeed417fa597890ed4f0fdc25e93a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/1/6352a21a-5ee9-4193-ad2d-fcfb87e22978.png?resizew=150)
A.4 | B.5 | C.![]() | D.![]() |
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【推荐2】如图1,在矩形ABCD中,动点P从点B出发,沿
方向匀速运动至点A停止,已知点P的运动速度为1cm/s,设点P的运动时间为x(s),
的面积为y(
),若y关于x的函数图象如图2所示,则矩形对角线AC的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fc9477c267b169bafbe5ccd24e7f6c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ce13774b09ff2edddaf21a072cf60a.png)
A.5 | B.6 | C.8 | D.10 |
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【推荐1】如图,在矩形
中,
,
,
平分
交
于点
点
,
分别是
,
的中点,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/28/60253f19-143e-4ea4-a3c1-e183a5ad6bc3.png?resizew=124)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ee826937d2add7a93aaa1422f8b736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e28ce60503fab70ce1797449d90dadc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/28/60253f19-143e-4ea4-a3c1-e183a5ad6bc3.png?resizew=124)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,矩形
中,
为
的中点,连接
并延长交
的延长线于点
,连接
交
于
,
,且
,那么
的长为( )
![](https://img.xkw.com/dksih/QBM/2020/10/27/2586269067526144/2609756672114688/STEM/6fe856fe-b6a1-4009-b05c-da4fb5658423.png)
![](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/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44f168762351404cbc09c06d5ad2581f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5151417dbfe41a34a9b97d6801034b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://img.xkw.com/dksih/QBM/2020/10/27/2586269067526144/2609756672114688/STEM/6fe856fe-b6a1-4009-b05c-da4fb5658423.png)
A.![]() | B.![]() | C.10 | D.5 |
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【推荐1】如图,平行四边形ABCD中,∠ABC的平分线BF分别与AC、AD交于点E、F,当AB=6,BC=8时,
的值为( )
![](https://img.xkw.com/dksih/QBM/2019/2/2/2131573408702464/2132904780005376/STEM/dc7d5328ce5c49858809814f31b267e9.png?resizew=137)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad8154834cafa775096014c44054fb21.png)
![](https://img.xkw.com/dksih/QBM/2019/2/2/2131573408702464/2132904780005376/STEM/dc7d5328ce5c49858809814f31b267e9.png?resizew=137)
A.3:4 | B.4:3 | C.3:7 | D.3:14 |
您最近一年使用:0次
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【推荐2】如图,
是
的直径,
,垂足为点
,连接
交
于点
,延长
交
于点
,连接
并延长交
于点
.则下列结论:①
;②
;③点
是
的中点.其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/f0aad78e-035c-46c2-a595-cb165d7419c3.png?resizew=107)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af620f6d204d310d8e3f267fdd6c3f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc93e193fad261689949a52819753f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc93e193fad261689949a52819753f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e305c10882acd64effc9c9fd977b844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72837a604898300316a080feb18191a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/f0aad78e-035c-46c2-a595-cb165d7419c3.png?resizew=107)
A.①② | B.①③ | C.②③ | D.①②③ |
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