The title you are searching for is "Self-study and Control Works in Geometry for Grade 10" ( Самостоятельные и контрольные работы по геометрии для 10 класса ). You can purchase physical copies from these major retailers:
: Lists various sellers and price comparisons for the paper edition. 2. Paper GDZ (Ready-Made Solutions) gdz geometrii 10 klass ershova i goloborodko
: Provides step-by-step solutions for every variant and level (A1, A2, B1, etc.). The title you are searching for is "Self-study
Official "printed" GDZs are less common as separate books today, but you can find "Reshebnik" booklets that specifically cover Ershova's problems. If you prefer to print them yourself to have a "paper" copy, you can find the full digitized solutions at: gdz geometrii 10 klass ershova i goloborodko
6 variants across 3 difficulty levels covering all major 10th-grade topics (Parallelism, Perpendicularity, Polyhedra).