下列有四个结论,其中正确的是( )
A.角平分线是角的对称轴 |
B.三角形的三条垂直平分线交于一点,这点到三角形三个顶点的距离相等 |
C.在同一平面内,有且只有一条直线与已知直线垂直 |
D.若4x=a,8y=b,则22x﹣3y可表示为![]() |
20-21七年级下·四川成都·期中 查看更多[2]
四川省成都市第十八中学校2020-2021学年七年级下学期期中数学试题(已下线)专题14.2 幂的除法运算(能力提升)-2022-2023学年八年级数学上册《同步考点解读·专题训练》(人教版)
更新时间:2021-08-11 13:52:39
|
相似题推荐
单选题
|
较易
(0.85)
名校
【推荐2】如图,直线
,
相交于点O,
.若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/178e3fa2e4de57a4c067e79be7d798e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d00af6219971da49793fdf5410ec71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/18/5f5c3b5d-b69b-4477-9506-5537f0a0b5e8.jpg?resizew=166)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐1】如图,点
为
内一点,分别作出
点关于
、
的对称点
,
,连接
交
于
,交
于
,若
,则
的度数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4a949c00526fddf435423272cf10f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38c211a24e544ded208ea0a2a2aa59bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a8a837c11c07073da3ff751d70278.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/6/be4cedce-bb7f-4dfc-bb28-9c9f70d36963.png?resizew=136)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐2】如图,在
中,
,分别以点
、
为圆心,大于
为半径画弧,两弧相交于点
、
,作直线
,分别交
、
与点
、
,若
的周长是
,则
的长等于( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/3958a70b-1a94-4a95-91a1-f8b91de3efb7.png?resizew=201)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9be43244c98e1ebb041ce09d191c0d.png)
![](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/20d49404351575703cfe8325d1352ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1275768bdac801185ef152290a85ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62a0233031d4e5ecc0b60b51ac25ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/3958a70b-1a94-4a95-91a1-f8b91de3efb7.png?resizew=201)
A.1 | B.1.5 | C.2 | D.2.5 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐1】下列四个图案中,既是轴对称图形又是中心对称图形的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】下列图形:①圆;②菱形;③平行四边形;④矩形中,既是轴对称图形又是中心对称图形的有( )
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次