Question 1021595
Building 1 is 9.28 meters high and the angle of elevation from the base to the top is 52 degrees. Building 2 is 11.19 meters high and the angle of elevation from the base to the top is 75 degrees. Find the angle of depression between the two buildings. 
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distance between the buildings = 11.19/tan(75) =~ 2.998 m
difference in height = 11.19 - 9.28 = 1.91 m
tan(A) = 1.91/2.998
Angle = 32.5 degs