如图△ABC中,∠B=30º,∠BAC=80º,AD平分∠BAC,则∠ADC的度数为( )
![](https://img.xkw.com/dksih/QBM/2019/1/25/2126369058643968/2132702876614656/STEM/5e7a68af51734eac8c8d7927951d9de7.png?resizew=115)
![](https://img.xkw.com/dksih/QBM/2019/1/25/2126369058643968/2132702876614656/STEM/5e7a68af51734eac8c8d7927951d9de7.png?resizew=115)
A.30º | B.40º | C.70º | D.80º |
更新时间:2019-02-03 14:18:01
|
相似题推荐
单选题
|
适中
(0.65)
【推荐1】如图, DF∥AC,若∠A=45°,∠B=55°,则∠FDB的度数为( )
![](https://img.xkw.com/dksih/QBM/2020/3/8/2422032046358528/2422379068710912/STEM/38ef64f4-20ae-4a38-99e2-5500c31c2200.png)
![](https://img.xkw.com/dksih/QBM/2020/3/8/2422032046358528/2422379068710912/STEM/38ef64f4-20ae-4a38-99e2-5500c31c2200.png)
A.40° | B.60° | C.100° | D.120° |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】如图:①②③中,∠A=42°,∠1=∠2,∠3=∠4,则∠O1+∠O2+∠O3=( )度.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/12/b3b5d0d1-08d6-46cc-894a-4f45bff0ba04.png?resizew=375)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/12/b3b5d0d1-08d6-46cc-894a-4f45bff0ba04.png?resizew=375)
A.84 | B.111 | C.225 | D.201 |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐1】如图所示,已知在
中,
平分
,
平分
,且
交
于
,若
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/476b0b8378f4b0f73f3dc5d84d89f616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09307b2858ce8da4bca9a519de9350ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a10f8fbfef0c999d84c479f72644e0.png)
A.25 | B.64 | C.81 | D.144 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,
中,
,
为
中点,延长
交
于点
,其满足
,
为
上一点,且
于点
.下列判断:①线段
是
的角平分线;②
是
边
上的中线;③线段
是
的边
上的高;④
.其中判断正确的个数是( )
![](https://img.xkw.com/dksih/QBM/2019/11/11/2331599100395520/2331862612992000/STEM/d666337deb2d454c903414e5153f6fc7.png?resizew=211)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.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/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d320f180419175d75eebc618cc458b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b62ce0cbffa4758c7a0e6fb7ca4d24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3814287dbb60d478bffc5366f9928b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db5e1441a49e782ff0ef46e776cde06a.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/e24e9da4baf5f37f723a7577d2cb30f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7ed1b118fc686de003117247814a341.png)
![](https://img.xkw.com/dksih/QBM/2019/11/11/2331599100395520/2331862612992000/STEM/d666337deb2d454c903414e5153f6fc7.png?resizew=211)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次