Answer
18 in (inch)
Work Step by Step
1 cm = 10 mm
1 in = 2.54 cm
$450 mm \times \frac{1 cm}{10 cm} \times \frac{1 in}{2.54 cm} = 18 in$
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.