Who is good at math it is not multiple choice 1) A) find the height of a tree, if the angle of elevation of its top changes from 25 degree to 50 degree as the observer advances 15 meters toward its base?
B) The angle of depression of the top and the foot of a flag pole as seen from the top of a building 145 metres away are 26 degree and 34 degree respectively. find the heights of the pole and the building?
C) To the nearest degree, find the angle of elevation of the sun when a 9 meter vertical flagpole casts a shadow 3 metres long?​