Elementary Geometry for College Students (7th Edition)

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

Chapter 8 - Section 8.3 - Regular Polygons and Area - Exercises - Page 376: 3a



Work Step by Step

Given side of an equilateral triangle is 2.5 m We need to find out the area of the equilateral triangle Area of equilateral triangle = $\frac{\sqrt 3}{4}s^{2}$ A = $\frac{\sqrt 3}{4}(2.5)^{2}$ = $\frac{\sqrt 3}{4}(6.25)$ =2.706$m^{2}$
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