Answer:
Okay, I figured it out. XY=9.246691583 or 9.247 if you're rounding.
Explanation:
In the right triangle of XYZ, Given that angle Z=90 degrees, angle X=58 degrees and XZ=4.9m.
Since it's a right triangle you can use SOHCAHTOA:
cosθ=adjacent/hypotenuse
cosθ=4.9/h
You can then manipulate the formula to this
h=4.9/cos(degree) = h=4.9/cos(58)
=9.246691583
hope this helps