: Stereometry, polyhedra, prisms, pyramids, and their cross-sections. Геометрия 7-9 классы
Detailed step-by-step solutions and video explanations are available on several educational platforms:
: Properties of isosceles triangles, parallel line theorems in real-world contexts, area calculations for complex figures, and advanced circle geometry (chords, arcs, and sectors). gdz atanasian zadachi povyshennoi slozhnosti
: The textbook itself marks these more challenging problems with an asterisk (*). It includes additional tasks for each chapter and a final "increased difficulty" section intended for exam preparation and olympiad-level practice. Typical Topics Covered
The advanced problems often focus on complex spatial relationships and proofs including: It includes additional tasks for each chapter and
The "Problems of Increased Difficulty" (Задачи повышенной трудности) section in the L.S. Atanasyan geometry textbook covers advanced topics designed to challenge students beyond the standard curriculum. These problems are typically found at the end of chapters or in a dedicated section at the back of the book. Key Resources for Solutions (GDZ)
: You can find detailed breakdowns of these advanced problems on Resh Skysmart , which organizes solutions by chapter and page number. These problems are typically found at the end
: Platforms like GDZ.ru (via VK) provide video solutions for specific problem ranges, such as 228–303 or 601–700, which often include the more difficult starred (*) tasks.