Two observers Abu and Badu, 46 m apart, observe a bird on a vertical pole from the same side of the bird. The angles of elevation of the bird from Abu's and Badu's eye are 40º and 48º respectively. If at the foot of the pole Abu and Badu are on same horizontal;

(a) illustrate the information in a diagram;

(b) calculate, correct to one decimal place, the height of the pole.