Some funniness in here. "Anyway, I’m not going to let him Liebniz my Newton here." I like the idea of a whole series of Sangaku puzzles done in stained glass

Some funniness in here. "Anyway, I’m not going to let him Liebniz my Newton here." I like the idea of a whole series of Sangaku puzzles done in stained glass (but, yeah, these mathematicians need to refine their stained glass skills — I suggest trying to make the next piece 2 × s). I propose that the element you are trying to find an answer for (here, the small circle here whose radius is a mystery) be the only element in color in order to draw attention to the unknown. (I can already see a small red circle floating in a sea of white shards … not unlike the Japanese flag I suppose if the flag were square.)