Answer:
If the two triangles are congruent, you can just look at both triangles and see what is missing from each. They are all the same! :D
z = 10 yd
v = 7.9 yd
y = 38°
u = 6.2 yd
x = 90°
And to find w...
You know that the sum of all angles in every triangle is 180°. We know that two angles are 38° and 90°. Add them and subtract it from 180° to find the remaining angle.
90 + 38 = 128
180 - 128 = 52
So w = 52°
Hope this helps! :D
Explanation: