: Offering high-level problems for students participating in mathematical competitions. Key Features of Gordin's Method

: Law of Sines, Law of Cosines, and area formulas for various polygons. Why Students Search for "GDZ" (Solutions)

: Providing the foundation for solving complex geometry problems (Task 17, formerly 16) in the Russian Unified State Exam (EGE).

: Congruence, similarity, the Pythagorean theorem, and triangle inequalities.

: Each chapter begins with essential theorems and "key problems" that demonstrate fundamental solving techniques. Core Topics Covered

The book follows the standard Russian 7th–9th grade curriculum, including: