Let x=|WZ|. You know |XW| in terms of x. Apply Pythagoras to triangle XZW.
I'm having some trouble with this problem.
so far I know that XY = 10.
I looked at the whole triangle first. Triangle XYZ.
I know that XZ is 6 so I applied the pythagoreans theorem which got me YZ = 8.
From this step I don't know what to do. I've tried looking at it different ways but nothing pops up.