Basic College Mathematics (9th Edition)

by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.

Published by Pearson

ISBN 10: 0321825535

ISBN 13: 978-0-32182-553-7

Chapter 7 - Measurement - Test - Page 529: 11

Answer

Work Step by Step

This page is about 21 cm wide. Length can be measured in m, cm or mm. If we choose 21 m it will very long for the width of the page even 21 mm will be short. So 21 cm is the correct choice.

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