Deep dive into Rectangles, Rhombuses, and Squares.
3. Similarity of Triangles (Подобие треугольников) Introducing the concept of "same shape, different size." geometriia 8 klass
Circumscribed and inscribed circles of a triangle. 5. Vectors (Векторы) - Optional/Advanced Basics: Definition of a vector, coordinates, and length. Deep dive into Rectangles, Rhombuses, and Squares
Central angles vs. Inscribed angles (and the relationship between them). Deep dive into Rectangles
Adding and subtracting vectors, multiplying a vector by a number.
Angle-Angle (AA), Side-Angle-Side (SAS), and Side-Side-Side (SSS).