Answer
42.426
Work Step by Step
$30^2 + 30^2 = x^2$
$900 + 900 = x^2$
$x^2 = 1800$
$x = 42.426$
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.