A surveyor the angle of evelvation of the a perpendicular building as 19 degree. He move 120 M nearer the building and find angle of elevation is now 47 degree.
Mathématiques
Ruathdeldiuc
Question
A surveyor the angle of evelvation of the a perpendicular building as 19 degree. He move 120 M nearer the building and find angle of elevation is now 47 degree. Determine the height of the building ?