Author: Benjamin Qi
Basic setup for geometry problems.
You should know basic operations like cross product and dot product.
short description of operations
Complex #s, Points & Lines, Polygons, Distances
basics, polygon area, point in polygon
some material is quite advanced
Some European Olympiads, like the CEOI, Balkan OI, and the Croatian OI, tend to have a lot of geometry problems. These problems tend to be quite difficult as well, so look for problems there when you run out of problems to practice!
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