Online Geometry theorems, problems, solutions, and related topics.
Geometry ProblemClick the figure below to see the complete problem 509 about Triangle, Three Squares, Midpoints, Concurrency, Mind Map.
Per problem 502, MB perpendicular to AC, CN perpen. to AB and AK perpen. to BCSo MB, CN and A K will concurrent at orthocenter P of triangle ABCPeter Tran