Question 317196
hey,

So for this one we use the formula :

a^2 + b^2 = c^2 

so we plug in the numbers:

10^2 + b^2 = 14^2

100 + b^2 = 196

We subtract 100 from both sides:

b^2 = 96

So b = the square root of 96

I hope this helps