Answer
139
Work Step by Step
$\sqrt {19200}=138.564$
Count three digits from the left to find the 3rd significant digit. Since the number to the right is 5 or greater, round up.
$13\underset\uparrow8.564\approx139$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 1 - Review - Page 102: 66
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