From horizontal distance of 8.5km, a pilots observes that angle of depression of the top and base of a control tower are 30 degree....

 

From  horizontal distance of 8.5km, a pilots observes that angle of depression of the top and base of a control tower are 30 degree and 33 degree respectively, Calculate correct to 3 significant  figure, the;

a) Shortest distance between the pilot and the base of the control tower.

b) Height of the control tower. 

Solution;