@Jlute ,
The wording of the question implies the road is above the tree.
The tree will fall on a slope angle whose tan=0.35, i.e. 19.29 deg.
Assuming the tree falls maximally up the slope, it will be the hypotenuse of a triangle whose opposite side is 200 ft.
Height=200/sin(19.29)
Height=605.42 ft.... That's unlikely ! ...Check your wording.