Question

From the top of a tower 60m high the angles of depression of the top and bottom of a
building are observed to be 30°and 60°. Find the height of the building. ​

Answer 1

Answer:

Step-by-step explanation:

let height of building = x    . let distance between them is = y       tan 60=60/y                                                                                                                                           tan 30 = 60-x/y         60/√3 = 60-x[√3]     , 60 = 60 - x [3]   ,60-180 = -3x            -120 = -3x . x =40 m