Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 8 - Test - Page 400: 7

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
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