Final answer:
The sum of the interior angles of any triangle is always 180 degrees, expressed by the equation A + B + C = 180. This fundamental property applies to all triangles, and it's a key concept in middle school mathematics.
Step-by-step explanation:
The student's question relates to the fundamental property of a triangle, specifically concerning the sum of its internal angles. According to basic geometrical rules, the sum of the interior angles of any triangle is always 180 degrees. This is a key concept in the study of geometry and is true for all triangles, regardless of their shape or size. The equation A + B + C = 180 succinctly expresses this relationship, with A, B, and C representing the measures of the individual angles inside the triangle. This concept is foundational and often explored in middle school mathematics.
The information provided about the Pythagorean theorem, which states a² + b² = c² for the sides of a right triangle, where 'c' is the hypotenuse, pertains to right triangles specifically. Additionally, the mention of the sum of angle measures applies universally to all types of triangles, including right, acute, and obtuse triangles.