Answer
40 cm
Work Step by Step
$\frac{400 mm}{1}$$\times$$\frac{1 cm}{10 mm}$=40.0 cm
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.