How many degrees are there in a triangle?

In any triangle, the sum of the interior angles is always 180 degrees. This is a fundamental property of triangles in Euclidean geometry. Regardless of the type of triangle—whether it is scalene, isosceles, or equilateral—the total measure of the angles formed by the three corners will equal 180 degrees. This is foundational knowledge that helps in understanding various geometric principles and solving problems related to triangles. Thus, when considering the options provided, the correct conclusion is that there are 180 degrees in a triangle.