Answer:
x = 3
Explanation:
We have given the triangle.
We have to find the value of x when the two sides are given.
As it is right-angled triangle so, we use pythagreon formula we get,
x² = 12² + 5²
x² = 144 +25
x² = 169
Now taking square root on both sides.
x = √169
x= ±13
As it is length so we take only positive value.
x = 13