: Great for quick access on mobile. It often includes video explanations for the more difficult proofs and construction problems.
It sounds like you're looking for a (solution manual) for the 7th-9th grade Geometry textbook by Atanasyan, Butuzov, Kadomtsev, Poznyak, and Yudina . gdz po geometrii klass pozniak iudina atanasian besplatno
Since this is a very common textbook in Russia, you can find free, step-by-step solutions on several reliable platforms. Here are the most popular ones: : Great for quick access on mobile