1) Two angles measure 40° and 50°. What type of angles are they? a) Complementary b) Neither c) Supplementary d) Reflex 2) What is the sum of two complementary angles? a) 60° b) 120° c) 90° d) 180° 3) What must an angle measure to be supplementary to a 65° angle? a) 105° b) 115° c) 95° d) 85° 4) Two angles are supplementary. One measures 150°. What is the other angle? a) 40° b) 50° c) 60° d) 30° 5) An angle is complementary to a 72° angle. What is its measure? a) 12° b) 18° c) 15° d) 14° 6) Which pair of angles is supplementary? a) 60° and 30° b) 100° and 30° c) 140° and 40° d) 80° and 50° 7) Which pair of angles is complementary? a) 25° and 65° b) 75° and 25° c) 35° and 45° d) 105° and 15° 8) Two angles add up to 90°. What can we say about them? a) Complementary b) Supplementary c) Neither d) Reflex 9) One angle is 35°. What is the complementary angle? a) 55° b) 45° c) 65° d) 75° 10) Which of the following is not a pair of supplementary angles? a) 70° and 110° b) 95° and 85° c) 120° and 60° d) 90° and 45°

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