From a point on the ground, the angle of elevation of the top of a tower is observed to be degrees. From a point, vertically above the first point of observation, the angle of elevation of the top of the tower is degrees. The horizontal distance from the point of observation is
Explanation for the correct option:
Step 1. Draw the figure according to the question:
Let Point B is meter above point A
From the figure, we have
Step 2. In , we have
……(1)
Step 3. In , we have
……(2)
Step 4. Put the value of in equation (1)
Length of tower
Distance of tower from the feet of point
Hence, Option ‘D’ is Correct.