SHARPEST ISOSCELES TRIANGLES
Excel file: 9.SharpestIsocelesTriangles
Chakerian and Erfle October, 2020 paper: 9._SharpestTrianglesPaper
This is a more general and expansive paper than provided for Files 7 and 8. Indeed, the paper for File 7 used the simplest results from this paper in order to create a version accessible to very young students.
This was the first paper I wrote with my mentor, Don Chakerian. The original impetus for the paper came from some images based on n = 4k+2 polygons that I shared with Don. I had obtained these images using the second double jump aestheometry File 4.2. (Specifically, you can obtain rotated versions of some the images in File 9 using File 4.2 for n = 4k+2 polygons by setting S = Jump 1 = 1 and P = n-1 with last n jumps counted counterclockwise clicked on.) Don was intrigued enough that we started working together.
As we worked jointly on this paper, Don pointed out to me that there were actually two distinct sets of isosceles triangle images when n is even … my aestheometry files only captured one of them for n = 4k+2, and I pointed out to him that when n is odd, the solution is even easier (but it was also not achievable using my existing aestheometry files).
This led me to create File 9, but it also led me to create File 10 which allowed us to examine all possible triangular images created using the vertices on a polygonal frame.