Properties of isosceles and right trapezoids; the midline of a trapezoid.
Using similarity to find the heights of objects or distances across rivers. 4. Circles (Окружность) Interactions: Tangent lines and their properties.
A cornerstone of 8th-grade geometry used to find missing side lengths in right triangles. geometriia 8 klass
Circumscribed and inscribed circles of a triangle. 5. Vectors (Векторы) - Optional/Advanced Basics: Definition of a vector, coordinates, and length.
Thales's Theorem and the definition of similar figures. Properties of isosceles and right trapezoids; the midline
Students learn to derive and apply formulas for the space inside shapes. Squares and Rectangles ( Advanced Areas: Parallelograms ( ), Triangles ( ), and Trapezoids (
Adding and subtracting vectors, multiplying a vector by a number. Properties of isosceles and right trapezoids
Deep dive into Rectangles, Rhombuses, and Squares.