Answer:
x=12.489
Step-by-step explanation:
In order to do this you need to know the Pythagorean Therom which is a^2+b^2=c^2. C^2 is the hypotenuse. We have to plug the values in.
10^2+b^2=16^2
100+b^2=256 we can simplify by subtracting 100 on both sides leaving b^2=156
Since b^2 is 156 we have to square both sides leaning b=12.489
