如图,在
中,
,
平分
,
为
中点,若
,
,则
的值为( )
![](https://img.xkw.com/dksih/QBM/2023/4/18/3218997599191040/3219891058245632/STEM/540576d0fa1849fbb7bfc82db5ae6a33.png?resizew=148)
![](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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.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/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/2023/4/18/3218997599191040/3219891058245632/STEM/540576d0fa1849fbb7bfc82db5ae6a33.png?resizew=148)
A.3 | B.5 | C.2.5 | D.3.5 |
更新时间:2023-04-19 15:08:02
|
相似题推荐
单选题
|
较易
(0.85)
【推荐1】如图,在
中,
,
平分
.若
,
,则
的周长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/18/3da07d24-81b3-4d1e-baf6-c66ab1eb7505.png?resizew=195)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad4c0ba3a6750537789844d0ec419d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/18/3da07d24-81b3-4d1e-baf6-c66ab1eb7505.png?resizew=195)
A.11 | B.14 | C.16 | D.18 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】如图,在等腰三角形
中,
,
,
的垂直平分线
分别交
,
于点D,E,点F为
的中点,点P为直线
上的一动点.若
的面积为15,则
的周长的最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/28/1cc10a98-93aa-4d36-ab04-5bdd7dc43ee3.png?resizew=139)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3a4638e2eb4e684b73416fb6a0f344.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/28/1cc10a98-93aa-4d36-ab04-5bdd7dc43ee3.png?resizew=139)
A.5 | B.![]() | C.10 | D.11 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】如图,在
中,
,
,边
在数轴上.点A表示的数为1,以O为圆心,
的长为半径画弧交数轴负半轴于点C,则C表示的数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b352fa3e781df195ceccca90c3932a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ec371d5dbc19d236bf8a1f084031e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09cf17ee13e937cd8b84879da17d15b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】如图,点
、
、
、
在☉
上,
,
,则点
到
的距离是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0addac3006a7f99ecb86d656ec111e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42fa734d58388d656e57f8f24ab31f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152236216f8d1cb39b261108e8fc8b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
A.![]() | B.![]() | C.3 | D.4 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】如图,在Rt△ABC中,∠ACB=90°,如果D为边AB上的中点,那么下面结论错误的是( )
![](https://img.xkw.com/dksih/QBM/2021/12/28/2889099356119040/2901230334771200/STEM/b34f6b2c-2dba-4b20-8c64-d8f25eae8df6.png?resizew=120)
![](https://img.xkw.com/dksih/QBM/2021/12/28/2889099356119040/2901230334771200/STEM/b34f6b2c-2dba-4b20-8c64-d8f25eae8df6.png?resizew=120)
A.![]() | B.![]() | C.∠A=∠ACD | D.∠ADC=2∠B |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】如图,在△ABC中,BC=12,D、E分别是AB、AC的中点,F是DE上一点,DF=1,连接AF,CF,若∠AFC=90°,则AC的长度为( )
![](https://img.xkw.com/dksih/QBM/2020/5/21/2467419896152064/2468049308704769/STEM/13708c554fb94295990c0e8b8ed1ac34.png?resizew=117)
![](https://img.xkw.com/dksih/QBM/2020/5/21/2467419896152064/2468049308704769/STEM/13708c554fb94295990c0e8b8ed1ac34.png?resizew=117)
A.10 | B.12 | C.13 | D.14 |
您最近一年使用:0次