Elementary Geometry for College Students (6th Edition)

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

Chapter 8 - Section 8.4 - Circumference and Area of a Circle - Exercises - Page 374: 37a


$\approx$ 1256 $ft^{2}$

Work Step by Step

Given A circular grass courtyard at a shopping mall has a 40-ft diameter. This area needs to be reseeded To find the total area to be reseeded We know the area of the circle which has radius r = $\pi r^{2}$ Area of circle = $\pi (\frac{40}{2})^{2}$ = $\pi (20)^{2}$ =400$\pi$ =1256.63 $ft^{2}$ $\approx$ 1256 $ft^{2}$
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