Answer
$x = 150.416 km$
Work Step by Step
$ x^ 2 = 55^ 2 +140 ^ 2$
$x^2 = 22625$
$x = 150.416 km$
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.