已知多边形的边、内角、外角、对角线、内角和、外角和中的一些元素，求另一些元素的过程叫解多边形，解多边形需要多方面知识的综合运用，涉及的解题方法灵活多变．下面举例分析常见的多边形解法．一、运用多边形内角和定理直接解多边形例１在一个n边形中，除一个内角外，其余 Knowing the sides, inner corners, outer corners, diagonal lines, inner corners, outer corners, and some elements of a polygon, the process of finding some other elements calls a solution to a polygon. The solution to a polygon requires the comprehensive application of various knowledge, and the solution to the problem is flexible. changeable. The following example analyzes the common polygon solution. First, using polygon inner angle and theorem to solve the polygon directly. Example 1 In an n-side polygon, except one inner corner, the others