Answer
2851.8 $ft^{2}$
Work Step by Step
A 7-gon has seven sides, so the perimeter is 7 x 28 = 196
A=$\frac{1}{2}$ap
A=$\frac{1}{2}$(29.1)(196)
A=2851.8
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: 12
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