Answer
$$3\bar{0}\ ft$$
Work Step by Step
We have
$$
360 \ ft^2 \div 12 \ ft=30\ ft
.$$
Now, round this product to two significant digits, which is the accuracy of the least accurate measurement. That is,
$$30\ ft =3\bar{0}\ ft$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 4 - Section 4.6 - Multiplication and Division of Measurements - Exercise - Page 188: 14
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