下列命题中,真命题的序号为( )
①相等的角是对顶角;
②在同一平面内,若
,
,则
;
③同旁内角互补;
④互为邻补角的两角的角平分线互相垂直.
①相等的角是对顶角;
②在同一平面内,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72fbc714c63815dad9a27418f6492f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289f5bc5fc3b73b5fb509109da0d6cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347347d0147894ec926890e1eef45de0.png)
③同旁内角互补;
④互为邻补角的两角的角平分线互相垂直.
A.①② | B.①③ | C.①②④ | D.②④ |
更新时间:2019-11-23 12:56:15
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