Talk:Spherical Geometry: Polygons

There are two explorations that use spherical easel. This is one, and Spherical_Easel_Exploration is the other. Both do many things, and both do many of the same things. I'd like to take these two and turn them into two explorations that are a bit more focussed. One should really hit on the triangles, and the angle sum >180, defect, etc. The other can look at quads and other spherical geometry questions. I'm not doing it this year, but I'd like to in the future. Bryan (talk) 11:01, 27 October 2014 (CDT)