Angles in a Regular Polygon Leave a reply You can find the Exterior angle in a regular polygon by using Ratio Grids if you want to. notes-sheet-angles-in-a-regular-polygonDownload https://videopress.com/v/FDOXTDJ2?resizeToParent=true&cover=true&preloadContent=metadata&useAverageColor=true Video Example – finding the number of sides of a polygon given the exterior angle