Answer
Triangle
$P = 37.8mi$
$A = 58.5mi^2$
Work Step by Step
Triangle
$P = 13 + 9 + 15.8 = 37.8mi$
$A = \frac{9*13}{2} = 58.5mi^2$
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 8 - Geometry - Review Exercises - Page 618: 80
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