Question

теорема о свойстве углов при основании равнобедренного треугольника

Answer 1

В равнобедренном треугольнике углы при основе равны. 

Answer 2

Theorem of the Property of Angles at the Base of an Isosceles Triangle

In an isosceles triangle, the theorem of the property of angles at the base states that the angles opposite the equal sides are also equal. This theorem is a fundamental property of isosceles triangles and is widely used in geometry and trigonometry.

Key Points: - The angles opposite the equal sides of an isosceles triangle are equal. - This theorem is a fundamental property of isosceles triangles.

The theorem can be expressed as follows: - In an isosceles triangle ABC, where AB = AC, the angles opposite the equal sides (angle B and angle C) are also equal.

This theorem can be used to solve various problems related to isosceles triangles and is an important concept in geometry and trigonometry.