Answer
24 cm$^2$
Work Step by Step
A=$\sqrt {s(s-a)(s-b)(s-c)}$
A=$\sqrt {16(12)(3)(1)}$
A=$\sqrt {576}$
A=24
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 8 - Test - Page 387: 7
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