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Geometry to the Rescue: A Story in Pictures

Our kitchen floor was in need of something (repair, replacement, rejuvenation?). This being the do-it-yourself age, we took ourselves to the nearest big box home store, and picked out a lovely laminate flooring in a pattern that looks like tile. The ads and the instructions all make it sound like a pretty simple project. We brought it home and set to work. Immediately, we ran into a problem (Fig. 1). Our breakfast nook is in an octagonal shape. This means no matter which wall we started on, we immediately had to tackle an angle cut. Problem: How do you measure an included angle with a protector, when that angle is between two solid walls?

Grade Level: Middle School (6-8)
Curriculum Topic Benchmarks: M5.2.2, M5.2.4, M5.3.7, M5.4.1, M5.4.6, M5.4.7, M5.4.12
Subject Keywords: Geometry, Plane figures, Congruent angles, Parallel Lines

Author(s): Lin Chambers
PUMAS ID: 11_04_03_01
Date Received: 2003-11-04
Date Revised: 2003-11-24
Date Accepted: 2003-11-26

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