Answer:
The hypotenuse is 15. Please give Brainilest
Explanation:
Since it is a right triangle, it probably follows the Pythagorean theorem
basically saying two legs squared equal hypotenuse squared

In this case, if you know your Pythagorean theorem triples, then the
answer will be 9,12,15
If you don't let me explain

This is correct
If you don't know how I got this, learn the first five or six Pythagorean theorem triples, and these will be a piece of cake for you. Remember this only works for right triangle though.