#### Answer

mm

#### Work Step by Step

My fingernail is 10 mm wide. Length can be measured in km, m, cm or mm. If we choose 10 km, 10 m or 10 cm it will very long for fingernail. So 10 mm is the correct choice.

Published by
Pearson

ISBN 10:
0321825535

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

mm

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