Transversal t intersects lines a, b, c to form 12 angles. The angles formed with line a, clockwise from top left, are 1, 2, 4, 3. The angles formed with line b, clockwise from top left, are 5, 6, 8, 7. The angles formed with line c, clockwise from top left are 9, 10, 12, 11. For the diagram shown, select the angle pair that represents each angle type.