19. Which of the following statements is NOT true when the number of sides of a polygeincreases?A. The number of vertices increases.B. The number of diagonals increases.C. The sum of the interior angle measures increases.D. The sum of the exterior angle measures increases.20. Which of the following statements is true if two angles are complementary?A. They are both acute.B. One is acute and one is right.C.One is acute and one is obtuse.D.One is right and one is obtuse.21. Which of the following statements about vertical angles is NOT true?A. They are formed by intersecting lines.B. They are adjacent.C.They are congruent.D.They are of equal measure.22. Which of the following statements is ALWAYS FALSE?A. Adjacent angles are supplementary.B. Angles that form a linear pair are complementary.C. Congruent angles are supplementary.D. Adjacent anglès are congruent.
Answer (1)
Answer:19. **Which of the following statements is NOT true when the number of sides of a polygon increases?** - **D. The sum of the exterior angle measures increases.** (The sum of the exterior angles of any polygon is always 360 degrees, regardless of the number of sides.)20. **Which of the following statements is true if two angles are complementary?** - **A. They are both acute.** (Complementary angles add up to 90 degrees. If both angles are positive, they must each be less than 90 degrees, making them acute.)21. **Which of the following statements about vertical angles is NOT true?** - **B. They are adjacent.** (Vertical angles are not adjacent; they are opposite each other when two lines intersect.)22. **Which of the following statements is ALWAYS FALSE?** - **B. Angles that form a linear pair are complementary.** (Angles that form a linear pair are supplementary, not necessarily complementary, as they add up to 180 degrees, not 90.)Step-by-step explanation:
