1 . 在△ABC中,
为角
的对边,且
,则
![](https://img.xkw.com/dksih/QBM/2016/6/22/1572781276913664/1572781283041280/STEM/df24ca6475564c649b269d8de6fab6f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2180e134cdd44338c140ac7c67c2e59.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2 . 在
中,已知
,
,
,则
的面积是
![](https://img.xkw.com/dksih/QBM/2016/6/22/1572781276913664/1572781282983936/STEM/136cd357d6394201b9554ea990fefb23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077c956ac0eb05cf120e14f17413dfa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://img.xkw.com/dksih/QBM/2016/6/22/1572781276913664/1572781282983936/STEM/4aa156b39dd74524b1b608f8f8d1c644.png)
![](https://img.xkw.com/dksih/QBM/2016/6/22/1572781276913664/1572781282983936/STEM/136cd357d6394201b9554ea990fefb23.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次
3 . 已知△ABC的三个内角A,B,C所对的三边分别为
,若
,则△ABC是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dfbfa7093615e816698c62447a95021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2681f0d1732bcaa8d6362fbd1fa6caa2.png)
A.等边三角形 | B.等腰三角形 | C.锐角三角形 | D.直角三角形 |
您最近一年使用:0次
4 . 已知△ABC满足
, 则角C的大小为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3875782aae9d97761e6b518373b991c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 给出下列四个命题,其中正确的命题是( )
①若
,则
是等边三角形;
②若
,则
是直角三角形;
③若
,则
是钝角三角形;
④若
,则
是等腰三角形;
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3afee4c4ff52b90a5befcb0f29d5863f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/397fca77f42d61ad3ff5388cee5bf80e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1116215e558396687e4ca6fc8bbabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b883d9703a1deaf8dbc18097c6b8bb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.①② | B.③④ | C.①③ | D.②④ |
您最近一年使用:0次
名校
6 . 在
中,
分别为内角
所对的边,
,且满足
.若点
是
外一点,
,
,平面四边形
面积的最大值是.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b05d3b8f5c9df891ef6fbcaf12f43207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac73d1e1a6a7f2a941f4393dc4334998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa35755a33879e1d9e4fc93c28a4ae1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5811e450dcff0e190c3d7378c08797c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ea16ceca816f7d3d50650af141baf42.png)
A.![]() | B.![]() | C.3 | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
887次组卷
|
7卷引用:2015-2016学年重庆市巴蜀中学高一3月月考理科数学试卷
名校
7 . 在
中,若
,则此三角形为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52153cd247c62030aaa74f3e0872162.png)
A.等边三角形 | B.等腰三角形 | C.直角三角形 | D.等腰直角三角形 |
您最近一年使用:0次
2016-12-04更新
|
731次组卷
|
4卷引用:2015-2016学年重庆市巴蜀中学高一3月月考理科数学试卷
8 . 如图,为了测量
两点间的距离,选取同一平面上
两点,测出四边形
各边的长度(单位:
):
,且
与
互补,则
的长为
.
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572564572160000/1572564577632256/STEM/21ba78918b2645f984a63e8e580a4fbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6767ec8f6dd2ad3e23239b55d25f35f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b841cdd5fef12de7867028b8a42eab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce89b633e5d6bcf9406e3f9208fe06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1512afbb3317d9f40c1a2071b466f996.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19798b6271b2713fbdb1ba959a5ddd82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/001fb1746a5c0d71c5d645e024fa8b3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce89b633e5d6bcf9406e3f9208fe06d.png)
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572564572160000/1572564577632256/STEM/21ba78918b2645f984a63e8e580a4fbc.png)
A.7 | B.8 | C.9 | D.6 |
您最近一年使用:0次
2016-12-04更新
|
910次组卷
|
7卷引用:2016届重庆一中高三下学期3月月考文科数学试卷
2016届重庆一中高三下学期3月月考文科数学试卷2015-2016学年广东省佛山一中高一下期中数学试卷吉林省梅河口市第五中学2019-2020学年高一4月月考数学试题(已下线)专题4.6 解三角形应用举例-2021年高考数学(文)一轮复习-题型全归纳与高效训练突破吉林省通化市梅河口五中2019-2020学年高一(4月份)第一次月考数学试题(已下线)专题4.7 正弦定理和余弦定理及其应用(精练)-2021年高考数学(文)一轮复习学与练(已下线)第21讲 解三角形应用举例(练) - 2022年高考数学一轮复习讲练测(课标全国版)
9 . 已知△
中,
,
,且
,则△
的面积是
![](https://img.xkw.com/dksih/QBM/2011/4/1/1576739552026624/1576739598843904/STEM/1202d8ad07504402a69e0f39ca750e35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e844225afaca3b437fc21c3bac31147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a142130fbf4cf2b0972e070287d0d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e3960992cba9d93bda0287f7a9ce4b.png)
![](https://img.xkw.com/dksih/QBM/2011/4/1/1576739552026624/1576739598843904/STEM/1202d8ad07504402a69e0f39ca750e35.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
10 .
中
的对边分别是
其面积
,则中
的大小是
![](https://img.xkw.com/dksih/QBM/2015/7/23/1572192837730304/1572192842752000/STEM/f19b2149bc5241568d9b7acf09e2e6ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8b1666d730b95efba80f505ac49e0b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次