trigonometry
Geometry
Level
pending
From the top of the building height of 18 meters, Wira see a bus with depression angle 30°. What is the distance between the bus and the building?
9√3
18√3
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1 solution
.... From the top , draw a horizontal line... Hence depression is 30 , Hence the remaining is 90 -30 =60 . now applying trigonometry fn.. x=18tan60* = 31.176 = 18root3.