Answer
12,080 $in^{2}$
Work Step by Step
An octagon has eight sides, so the perimeter is 8 x 50 = 400.
A=$\frac{1}{2}$ap
A=$\frac{1}{2}$(60.4)(400)
A=12080
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 10 - Area - 10-3 Areas of Regular Polygons - Practice and Problem-Solving Exercises - Page 632: 13
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