Elementary Geometry for College Students (6th Edition)

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

Chapter 8 - Section 8.5 - More Area Relationships in the Circle - Exercises - Page 380: 40

Answer

About 11.46 inches

Work Step by Step

The height is equal to the altitude of the equilateral triangle in the center plus 2 radius (one on the bottom and one on the top.) Altitude=.5(4)$\sqrt 3$ A=2$\sqrt 3$ h=A+2r h=8+2$\sqrt 3$ h$\approx$11.46
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