Answer: 
 
≈ 10.63 
 
Step-by-step explanation: 
 
Pythagorean Theorem... Possibly the most easy theory in math once you understood it. 
 
Here's the formula. 
 
 
 
AB would be the hypothenuse 
 
BC would be the opposite 
 
CA would be the Adjacent. 
 
But let's not make it complicated though, the question is actually quite easy. 
 
You are asked to find AB, the hypothenuse. 
 
The hypothenuse would be C. 
 
BC and CA would be A and B. 
 
It doesn't matter where are you going to place the numbers. 
 
So, 
 
 
 
= 113 
 
Now we would have to square root 113 since 
 
 is an irrational number, and the question asks you to round ro the nearest tenth. 
 
 =10.63014581 
 
≈ 10.63 
 
Your answer would be 10.63 
 
Hope this answer helped :)