Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10: 9781285195698
ISBN 13: 978-1-28519-569-8

Chapter 1 - Section 1.6 - Relationships: Perpendicular Lines - Exercises - Page 49: 6


See the picture below:

Work Step by Step

By using a compass mark an arc with the center of O to intersect the two sides of line $\overline{OA}$. Now with those two points as centers, mark off two arcs with equal radii to intersect in point R. Connect this point with O to get the right angle.
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