Summer AMC Class

During the summer of 2020, I will be holding an AMC 10/12 class for beginners. See more details here.

Exploring Euclidean Geometry

"You can trick yourself into creating something so grand that you would never have dared to plan such a thing."

I've decided to re-write the book for various reasons. Here's a preview that consists of the first four chapters, which all span the first part.

Unsurprisingly, expect many errors. If you find them, please email me or PM me on AoPS at dchenmathcounts.

(Version 1 is listed in "Handouts" for posterity.)

I also have a math program that I teach online. My recommendations for math contests are here.