本刊于2012年4月刊登了陈华老师的文章《多边形的一个角》,拜读后受益匪浅,但对于该文中的例4,笔者认为利用带余除法很容易解决这类问题.利用该法不但能求出多边形的一个角,还能求出多边形的边数.下面举例说明.(本文的例2即是原文中的例4)例1一个多边形的内角和与它的一个外角的度数之和为1350°求此多边形的边数及这个外角的度数 In April 2012, the magazine published an article entitled “A Corner of Polygons” by Professor Chen Hua, which benefited a lot from the study. However, for Example 4 in this article, I think it is easy to solve such problems by using the division with remainder method. The method not only finds one corner of a polygon, but also obtains the number of sides of a polygon, as an example. (Example 2 of this article is the original example 4) Example 1 The angle of a polygon and its outer angle And the sum of 1350 ° to find the number of sides of the polygon and the degree of the outer corner