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3-1 Solve It! You want to assemble a bookcase. You have all the pieces, but you misplaced the instructions that came with the box. How would you write the instructions? ? Try visualizing how the bookcase looks in two dimensions. E C A B F D 3-1 Lesson Quiz H 1. Name a plane parallel to plane ABCD. E G F D C A B 2. Name a pair of same-side interior angles in the figure below. 1 5 2 6 3 7 4 8 3. In the figure above, are /1 and /8 alternate interior angles, same-side interior angles, corresponding angles, or alternate exterior angles? 4. Do you UNDERSTAND? Why are alternate interior angles and alternate exterior angles both called “alternate”? Answers hsm11gmse_0301.indd 140 2/10/09 1:42:24 AM Solve It! Pieces A and D are the sides of the bookcase. Pieces B, C, E, and F are the shelves; instructions may vary. Sample: Arrange pieces A and D so that a pair of flat faces are across from each other, and each piece stands upright with its long edges ' to the floor. Place piece B flat on the floor between A and D so that its long edge is ' to the long edges of both A and D. Attach one short edge of B to each of pieces A and D. Place piece C in between and at the top of A and D so that its long edge is ' to the long edges of both A and D. Attach one short edge of C to each of pieces A and D. Attach pieces E and F in a similar manner in between pieces B and C. Lesson Quiz 1. 2. 3. 4. plane EFGH /2 and /3 or /6 and /7 alternate exterior angles Both alternate interior and alternate exterior angle pairs lie on opposite sides of the transversal. Prentice Hall Geometry • Solve It/Lesson Quiz on Transparencies Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved. 15