The distance of a boat from a bridge 120 m high above sea level is 200m. Calculate the angle of elevation of the bridge from the boat. SO HARD GUYS. PLEASE HELP.

not so hard if you

(a) draw the diagram
(b) review your basic trig functions. The angle θ has
tanθ = 120/200 (if the distance on the water is 200m)
sinθ = 120/200 (if the line-of-sight distance is 200m)