Geometriia 8 Klass -

Properties of isosceles and right trapezoids; the midline of a trapezoid.

2. Area of Polygons (Площадь многоугольников)

3. Similarity of Triangles (Подобие треугольников) Introducing the concept of "same shape, different size." geometriia 8 klass

A cornerstone of 8th-grade geometry used to find missing side lengths in right triangles.

Using similarity to find the heights of objects or distances across rivers. 4. Circles (Окружность) Interactions: Tangent lines and their properties. Properties of isosceles and right trapezoids; the midline

Angle-Angle (AA), Side-Angle-Side (SAS), and Side-Side-Side (SSS).

Thales's Theorem and the definition of similar figures. Properties of isosceles and right trapezoids

Definition, properties of sides/angles, and signs of a parallelogram.