divide the sum of interior angles in a triangle by 3 In an isosceles triangle, two of the sides are equal. This means two of the angles are equal. These are the base angles. The base angles are ...

Discusses the properties and types of triangles, explaining that a triangle ... sides and angles. The video also covers the concept of congruency, demonstrating how two triangles can be equal ...

an isosceles triangle in which the two sides of equal length are in the golden ratio to the base side—i.e., the two sides are ...