Abby Garcia, Abby- Resident Noodle Expert
Hello there! When doing a problem like this, you must remember the pythagorean theorem! A^2+ B^2 = C^2
You can fill in A with 53 and fill in C with 18.
When you fill this in, you must remember that the numbers are squared!
When you find B^2 remember to square root the answer in order to get B.
Hope this helps!