Dao's theorem on six circumcenters associated with a cyclic hexagon - Sketchup Fail

Dao's theorem on six circumcenters associated with a cyclic hexagon - Sketchup Fail

President Le
http://forumgeom.fau.edu/FG2014volume14/FG201424index.html https://vi.wikipedia.org/wiki/%C4%90%E1%BB%8Bnh_l%C3%BD_%C4%90%C3%A0o_v%E1%BB%81_s%C3%A1u_t%C3%A2m_%C4%91%C6%B0%E1%BB%9Dng_tr%C3%B2n
Default Title