Answer:
10.98 (approximately)
if you wan the exact answer, type into the google search bar:
"sqrt 119"
Explanation:
in a right triangle, the longest leg is called the hypotenuse. To find the missing side, you need to use the Pythagorean theorem.
"a^2+b^2=c^2"
c = the hypotenuse
a and be are the other legs.
plug in the numbers.
5^2+b^2 = 12^2
25 + b^2 = 144
b^2 = 119
b = 10.98 (approximately)