Most GDZ sites are organized by specific textbooks. The most widely used manuals for 9th grade in Russia include:

: Operations on vectors, calculating the distance between points, and the equations of lines and circles.

If you are using GDZ to study, ensure you focus on these key 9th-grade chapters:

Ready-made homework solutions (GDZ) for 9th-grade geometry are most effective when used as a verification tool rather than a source for copying. In Russia, the 9th-grade curriculum marks the final year of planimetry (flat geometry), focusing on vectors, coordinates, and movement.

: Concepts of symmetry (axial and central), rotation, and parallel translation. How to Use GDZ Effectively

Using these guides blindly can lead to poor performance on the OGE (State Exam). Experts recommend a "Self-Check" method: Grade 9 Geometry: Lesson 1 - Intersecting Lines