Answer:

Step-by-step explanation:
Pythagorean Theorem: 
In this case, a = 9, b = a, and c = 15.


The, we subtract 81 from both sides getting:
,
Then, 
Answer:
180
Step-by-step explanation:
What you have to do is multiply all of them.
9 x 4 x 5 = 180
100,100,100,100 is the answer