What is the sum of the angles in a triangle?

The sum of the angles in a triangle is 180 degrees. This is a fundamental property in Euclidean geometry, which states that when you take a triangle, regardless of its type (whether it is scalene, isosceles, or equilateral), the three interior angles will always add up to 180 degrees.

This fact can be demonstrated through various means, such as by drawing a line parallel to one side of the triangle and using the angles formed to show that the sums equal 180 degrees. Understanding that this total remains constant helps in various geometric calculations and proofs, reinforcing the foundational knowledge of geometry used in more complex mathematical concepts.

The other totals mentioned, such as 90 degrees (the sum of angles in a right angle), 270 degrees, and 360 degrees (the sums for specific shapes or situations) do not apply to the sum of angles in a triangle. These numbers may pertain to other geometric figures or scenarios but are not relevant here.