Because your request didn't specify a grade level or author, here are the most common workbooks and where to find their solutions:
Another popular series by A.G. Merzlyak, V.B. Polonsky, and M.S. Yakir. gdz k tetradi po geometrii klass
Specifically the " Рабочая тетрадь " designed to accompany the Atanasyan textbook. Popular Resources for These Answers: Because your request didn't specify a grade level
This is the most standard curriculum. Solutions are usually found for the " Рабочая тетрадь " (Workbook) by L.S. Atanasyan. gdz k tetradi po geometrii klass
Provides answers for various workbook editions, including newer GEF (ФГОС) versions.
The phrase (GDZ k tetradi po geometrii [number] klass) refers to готовые домашние задания (ready-made homework assignments) or answer keys for geometry workbooks in Russian schools .