For items number 18-20 refer the picture 18. Which of the following pairs represents alternate exterior angles? А. 1 and 2 B. 2 and 3 C4 and 5 D. I and "6 19. Which of the following pairs represents alternate interior angles? A.4 and 5 B. 6 and 7 C. 2 and 8 D.1 and 8 20. What term best describes angles 7 and 6? A. Acute B. Obtuse C. Scalene D. Congruent
