Question

From a point on a plane ground the angle of elevation of the top of tower is 15°.After walking a distance of 100 m towards the tower the angle of elevation becomes 30° .Find the height of tower.​

Answer 1

Answer:

LetAB is tower of height h

In ΔABP,tanθ=300h=52 given

h=120

in ΔABQ,tanβ=BQh

=120/300−140

160/120=4/3

Answer 2

Step-by-step explanation:

LetAB is tower of height h

In ΔABP,tanθ=300h=52 given

h=120

in ΔABQ,tanβ=BQh

=120/300−140

160/120=4/3