Question

The angle of elevation of the top B of a tower AB from a point X on the ground is 60"
At a point Y, 40m vertically above X, the angle of elevation of the top of the tower is 45°.
Find the height of the tower AB and distance XB.​

Answer 1

Answer:

let B and C be the two positions of jet fighter. it takes 15 sec. to reach the point C from B. thus the height of the jet fighter is 2.598 km .