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NAME 1-5 DATE PERIOD Angle Relationships What You’ll Learn Scan Lesson 1-5. List two headings you would use to make an outline of this lesson. 1. ____________________________________________________ ____________________________________________________ 2. ____________________________________________________ ____________________________________________________ Active Vocabulary New Vocabulary Label the diagram with the correct terms. Use each term once. adjacent linear pair vertical ∠1 and ∠2 are angles and a . complementary Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc. supplementary perpendicular w Lines w and x are . ∠4 and ∠5 are 1 5 and angles angles. 4 2 3 ∠1 and ∠3 are angles. x Vocabulary Link Perpendicular has a nonmathematical meaning. Look up perpendicular in the dictionary. List at least five examples of things that are perpendicular in everyday life. ———————————————————————————— ———————————————————————————— Chapter 1 11 Glencoe Geometry Lesson 1-5 ———————————————————————————— NAME DATE PERIOD Lesson 1-5 (continued) Main Idea Pairs of Angles pp. 46–48 Details Summarize angle relationships by completing the graphic organizer with the terms adjacent angles, complementary angles, vertical angles, and supplementary angles. relationship due to positioning Special angle pairs relationship due to angle measures ⎯⎯ ⊥ BA ⎯⎯. If m∠ABC = 2x + 12, find x so that BC " & % # $ = definition of perpendicular = Simplify. Helping You Remember Look up the nonmathematical meaning of supplementary in a dictionary. How can this definition help you to remember the meaning of supplementary angles? ————————————————————————————————————————— ————————————————————————————————————————— Chapter 1 12 Glencoe Geometry Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc. Perpendicular Lines pp. 48–50