The sum of three interior angles of a triangle is 180
- The sum of three interior angles of a triangle is 180 degrees
- The sum of the three interior angles of a triangle is always 180 degree
- The sum of all three interior angles of a triangle is 180°
- The sum of the angles of a triangle is 180
- In a right triangle one angle measures x° where sin ° = x 4 5 . what is cos(90° − °) x
- The sum of three interior angles in a triangle is always 180 degrees