Here's [1] an article from 2015 describing Casey Mann, Jennifer McLoud, and David Von Derau's discovery of the 15th type of pentagon. [1] https://www.theguardi

Here's [1] an article from 2015 describing Casey Mann, Jennifer McLoud, and David Von Derau's discovery of the 15th type of pentagon. [1] https://www.theguardian.com/science/alexs-adventures-in-numberland/2015/aug/10/attack-on-the-pentagon-results-in-discovery-of-new-mathematical-tile https://www.theguardian.com/science/alexs-adventures-in-numb...