An isosceles triangle has two sides that are of equal length, known as the legs, and the third side is called the base. The angles opposite the equal sides are the base angles.
In an isosceles triangle, the base angles are always equal to each other. This property arises from the triangle’s symmetry. For example, if you have an isosceles triangle with equal sides measuring 5 cm and a base measuring 6 cm, the angles opposite the equal sides will be the same. If you knew the vertex angle (the angle between the two equal sides), you could easily find the base angles using the fact that the sum of all angles in a triangle equals 180 degrees.
To calculate the base angles, you would subtract the vertex angle from 180 degrees and then divide by 2. This ensures that both base angles are equal and together with the vertex angle sum up to 180 degrees.