Math Competition Books Series (9th book) This book introduces some commonly used skills to draw auxiliary lines in plane geometry problem solving. The book can be used by students preparing for math competitions such as Mathcounts, AMC 10/12/AIME.
Math Competition Books Series (9th book) This book introduces some commonly used skills to draw auxiliary lines in plane geometry problem solving. The book can be used by students preparing for math competitions such as Mathcounts, AMC 10/12/AIME.