I wrote a Monte Carlo area calculator once. Just draw an arbitrary shape and hit solve. You can increase the number of samples used. https://victorribeiro.com/

I wrote a Monte Carlo area calculator once. Just draw an arbitrary shape and hit solve. You can increase the number of samples used. https://victorribeiro.com/monteCarlo/ https://victorribeiro.com/monteCarlo/ The drawing area is 500x500 pixels, so if the shape covers the whole area, the result should be 250.000 pixels