Question #deeb3
2 Answers
In figure
AB = h ft = Height of the building
C is the point on the ground from which angle of elevation of building
D is the point on the ground(50 ft closer to the building from C) from which angle of elevation of building
Let BD = x ft
Now
Again
Height of building
Explanation:
Let line AB be the building with A the top.
Let C be the first point with ascending angle 30°20'
Let D be the second point with ascending angle 45°
In triangle ACD
In triangle ACD:
Multiply both sides by
In triangle ADB
AB=height of building=opposite side