# Angles of an isosceles triangle

The main difference between an isosceles triangle is that its two sides are equal. The angles of its base are also equal. These properties greatly facilitate calculations related to the isosceles triangle.

**Find the angles of an isosceles triangle through the sides and base**

**Side of an isosceles triangle a**

**The base of an isosceles triangle b**

**Angle α (degree)**

**Angle β (degree)**