can someone me with a step by step of this problem ? i'll seriously appreciate it, and you so so so much in
don't answer if you're ! i need actual , don't just take my points. : c

So, you're trying to find the hypotenuse. This is called the pythagorean theorem.  you're going to use a squared plus b squared equals c squared. 
11=a squared 
60= b squared
put that into a equation. 
you'll get:
121+3600= c squared
3721=c squared
find the square root of 3721, finding the square root will get rid of the squared sign by the c
the square root of 3721 is 61
61=c

hope this helps!!