Interior angles of a triangle sum to 180 degrees
- Prove that the interior angles of a triangle sum to 180 degrees
- The sum of the interior angles of a triangle is equal to 180 degrees
- The sum of the interior angles of a triangle add up to 180 degrees
- The sum of the 3 interior angles of a triangle is always equal to 180 degrees
- States that the sum of the measures of the interior angles of a triangle is equal to 180 degrees