如图,在
中,
,
,
,
是
边上的高,若
,
分别是
和
上的动点,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eeb0c8df3d8c5260768c5e407b3583a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b939af5ba06e279cce39396aaf0fae06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ee826937d2add7a93aaa1422f8b736.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5d464faee7d43274109aa13698fa48.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/18/d4dae923-da85-4b90-b2bc-e9dc7f1f8b63.png?resizew=167)
A.2.4 | B.4.8 | C.7.2 | D.9.6 |
更新时间:2024-01-18 20:14:52
|
相似题推荐
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适中
(0.65)
名校
【推荐1】如图,在
中,
,
是
的角平分线,若P、Q分别是
和
边上的动点,则
的最小值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/4b7067bc-d432-424c-9019-2520da0cbcfc.png?resizew=220)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af6b141e0bf2fbb8d0f6a8338eb2536b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5d464faee7d43274109aa13698fa48.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/17/4b7067bc-d432-424c-9019-2520da0cbcfc.png?resizew=220)
A.![]() | B.2 | C.![]() | D.![]() |
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【推荐2】下列说法中正确的个数有( )
①平面内,过一点有且只有一条直线与已知直线垂直;
②过一点有且只有一条直线与已知直线平行;
③连接直线外一点与直线上各点的所有线段中,垂线段最短;
④如果两个角的两边分别平行,那么这两个角相等.
①平面内,过一点有且只有一条直线与已知直线垂直;
②过一点有且只有一条直线与已知直线平行;
③连接直线外一点与直线上各点的所有线段中,垂线段最短;
④如果两个角的两边分别平行,那么这两个角相等.
A.1个 | B.2个 |
C.3个 | D.4个 |
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【推荐1】如图,在△ABC中,∠BAC=90°,AD是BC边上的高,BE是AC边的中线,CF是∠ACB的角平分线,CF交AD于点G,交BE于点H,下面说法正确的有( )个①△ABE的面积=△BCE的面积;②∠FAG=∠FCB;③AF=AG;④BH=CH.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/68e722dd-e0b5-41a8-a49a-521bca55fbd7.png?resizew=175)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/68e722dd-e0b5-41a8-a49a-521bca55fbd7.png?resizew=175)
A.1 | B.2 | C.3 | D.4 |
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【推荐2】
中,
的对边分别为a、b、c.已知
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23beb7fa35ed321584f95c7507b8b78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd1e2f72237bc633f0a40b959c52063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc1e3b1df04b5377a32aa669bc57e5a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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单选题
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(0.65)
【推荐1】如图,在
中,
,点D是
的中点,
交
于点E,连接
,若
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/2/864a27d1-7639-44c9-93ce-7377a8aff3f6.png?resizew=88)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974716ab9388932181e478f2afbc8c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/2/864a27d1-7639-44c9-93ce-7377a8aff3f6.png?resizew=88)
A.![]() | B.3 | C.![]() | D.4 |
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【推荐2】如图,在
中,
,
的垂直平分线
交
于点D,
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/20/2e51ca87-90dd-4942-844e-bd13f4c696ea.png?resizew=130)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70ea60dd2430385b5594e54517decfc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868ff1350bd72625328c85c3097cd85e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/20/2e51ca87-90dd-4942-844e-bd13f4c696ea.png?resizew=130)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】如图,在
中,
,
,
,点D为
的中点,
于点E,则
的长是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e3f5dc11efe60b4fd9a13b1d6b83842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
A.1 | B.![]() | C.3 | D.6 |
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【推荐2】如图,
中,
分别是
的中线和角平分线。若
,则
的度数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4358faa9391e2e408c3142e955cb3400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1dbf97b1e17a6a50d4b83db8114ec8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a2db6311e228ed33b6c71d0a5918cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/23/7c09f2cd-67b2-4cdb-b3af-92ab7b7c8aea.png?resizew=111)
A.30° | B.35° | C.40° | D.45° |
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