Answer
$31.2~km^2$
Work Step by Step
$1~mi^2 \approx 2.6 ~km^2$
We can convert $12~mi^2$ to units of square kilometers.
$12~mi^2 = \frac{12~mi^2}{1}\times \frac{2.6~km^2}{1~mi^2} = 31.2~km^2$
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 9 - Measurement - Chapter Summary, Review, and Test - Review Exercises - Page 607: 26
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