Find the angle of elevation of the sun from the ground to the top of a tree when a tree that is 10 yards tall casts a shadow 14 yards long. Round to the nearest degree.
Call the angle A
Note that tan A = opposite side / adjacent side = 10/14
So...to find A take the tan inverse (arctan)
arctan (10/14) ≈ 35.53° = 36°