当n边形边数增加2条时,其内角和增加( )
A.![]() | B.![]() | C.![]() | D.![]() |
20-21七年级下·全国·课后作业 查看更多[4]
更新时间:2021-10-04 11:54:23
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【推荐2】一个多边形内角和是1440°,则这个多边形的边数为( )
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