Answer
84 $in^{2}$
Work Step by Step
Area of a triangle formula is A=$\frac{1}{2}$bh.
A=$\frac{1}{2}$bh
A=$\frac{1}{2}$(21)(8)
A=84
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 - Mid-Chapter Quiz - Page 642: 1
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