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A fingernail moon: inspiration for poets and mathematicians alike ()

The Area of a Lune

Another No-Algebra Geometry Puzzle

This one comes from , who in turn got it from a dead mathematician with a beard. You can check out Penn’s solution . The solution below is my own.

Figure 1 shows a right triangle parachuting to the ground with a bedsheet.




Maths is like finger-painting. Messy and beautiful.

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Adam Hrankowski, ADHD

Adam Hrankowski, ADHD

Canadian math guy, experimenting with fiction. Find my new scifi/fantasy serial here:

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