The sum of the interior angles of any triangle is always what?

The sum of the interior angles of any triangle is always 180 degrees. This holds true for all types of triangles, whether they are scalene, isosceles, or equilateral. The concept is foundational in geometry and can be demonstrated through various methods, such as dividing the triangle into two right triangles or using parallel lines and transversals to show the angle relationships.

In essence, if you were to measure the three angles inside any triangle and add them together, the total will always equal 180 degrees. This property is significant because it helps in solving problems related to triangles and can also be used to determine the measure of an unknown angle when two angles are known. Understanding this concept is essential for developing more complex geometric reasoning and problem-solving skills, particularly in upper-level mathematics.