The sum of interior angles of a triangle is 180 degree
- The sum of interior angles of a triangle is 180 degrees
- The sum of the interior angles of a triangle is always 180 degrees
- The sum of all interior angles of a triangle is 180 degree
- The sum of three interior angles of a triangle is 180 degrees
- The sum of the interior angles of a triangle is always 180 degrees true or false
- The sum of the interior angles of a triangle is 180 degree true or false