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Name _______________________________________ Date __________________ Class __________________ Angle Relationships and Constructions Puzzles, Twisters & Teasers: Off the Hook! Draw lines to match each term with the correct figure. Each figure has a corresponding letter. Use the letters to solve the riddle. 1. complementary angles E 2. right angle O 3. ray S 4. supplementary angles G 5. vertex U 6. obtuse angle R 7. acute angle N 8. straight angle T Who performs operations in the fish hospital? The _____ _____ _____ _____ _____ _____ _____ _____ Holt McDougal Mathematics Name _______________________________________ Date __________________ Class __________________ UNIT 5 Geometry Module 11 Answers for Lesson 11.1 Practice A 1. 3. 5. 7. 9. acute right neither complementary 100° 2. 4. 6. 8. 10. obtuse 60° 25° 85° 50° 40° 90° supplementary 70° Practice B 1. 3. 5. 7. 9. 11. straight obtuse neither neither 143° 97° acute supplementary complementary complementary 26° 49° Problem Solving right 2. acute 4. complementary 6. neither 8. 102° supplementary; 58° complementary; 55° obtuse neither supplementary 74° Reading Strategies Review for Mastery 1. 3. 5. 6. 120° 3. 30° 5. 132° 7. 24° 2. 4. 6. 8. 10. 12. Practice C 1. 3. 5. 7. 9. 10. 11. 2. 90°; right 2. 60°; acute 120°; obtuse 4. 180°; straight complementary; 90° supplementary; 180° Challenge 1. 1. 3. 5. 7. 55° 6 D B 4. 60° 6. 174° 8. 168° 2. 4. 6. 8. 130° 5 G H 1. a protractor 2. under the hole in the middle of the protractor 3. one of the two rays 4. 90 degrees 5. 120 degrees Puzzles, Twisters & Teasers 1. N 2. S 3. O 4. T 5. E 6. U 7. G 8. R S T U R G E O N 150° Holt McDougal Mathematics