Find the value of x in the triangle shown below.

Answer:
b) x = 12
Step-by-step explanation:
You have to use pythagreom therom.
a^2 + b^2 = c^2
Plug in.
5^2 + b^2 = 13^2
Then just solve.
25 + b^2 = 169
b^2 = 144
b = 12