

Types of triangles

Isosceles triangular, its properties and signs.

Isosceles triangular, its properties and signs.

Triangle inequality

The sum of the angles of a triangle.

The sum of the angles of a triangle.

The exterior angle of a triangle and its properties

The exterior angle of a triangle and its properties.

Properties of right triangles.

Properties of right triangles.

Solving problems of practical content.

Solving problems of practical content.

Circle.

Tangent to the circle and its properties

Construction of a triangle on three sides

Construction of an angle equal to the given

Construction of the bisector of the given angle

Dividing this segment in half
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