Delta, Delta, Delta
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Date
0000-00-00
Authors
University of Texas at Austin
McDonald Observatory
Journal Title
Journal ISSN
Volume Title
Publisher
McDonald Observatory
Abstract
Department
Description
Introduction: In this experiment, students construct an equilateral triangle using graph paper, pencil, protractor and a ruler. They also make a "laser triangle" using a laser pointer and front-silvered mirrors. Students can use the geometric properties of an equilateral triangle combined with their understanding of the Law of Reflection to decide how to place the mirrors at each vertex so that the "laser triangle" fits their equilateral triangle.