It includes both "independent works" (samostoyatelnye) for ongoing practice and "control works" (kontrolnye) for final topic assessments.
Official editions typically include an answer key at the end of the book, which serves as the primary "reshebnik" for students and teachers to verify results. Core Topics Covered (8th Grade) the Pythagorean theorem
Quadrilaterals, the Pythagorean theorem, areas of polygons, and similarity. Availability and Modern Use areas of polygons