Elementary Geometry for College Students (7th Edition) Clone

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 3 - Review Exercises - Page 177: 4

Answer

1. OA is congruent to OB (given). 2. Since OA is congruent to OB, triangle OBA is an isosceles triangle by definition. 3. The median of an isosceles triangle is the same as the altitude. 4. The altitude forms a right angle with the bottom side. 5. Thus, OC forms a right angle with the bottom side.
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