What is the sum of the angles in a triangle?

In Euclidean geometry, the sum of the interior angles of a triangle is always 180 degrees. This fundamental property allows us to solve for unknown angles and understand the relationship between the angles in a triangle. Whether it's an acute, obtuse, or right-angled triangle, the sum of its interior angles remains constant at 180 degrees. Understanding this concept is crucial for grasping more complex geometric principles.

Remember: Angle A + Angle B + Angle C = 180°!