Rohit was moving towards the hill to have a sight scene from its top. At a certain point in his way, he found that the angle of depression to top of the hill was. After travelling 30m towards the hill, he found that the angle of depression to the top of the hill now became . Find the height of the hill.
69.80m
70.98m
68.47m
None
Angle of Depression -
If an object is below the horizontal line from the eye, we have to lower our head to view the object.
- wherein
from fig
Now in
Option 1)
69.80m
This solution is incorrect.
Option 2)
70.98m
This solution is correct.
Option 3)
68.47m
This solution is incorrect.
Option 4)
None
This solution is incorrect.