The angle of the depression from the top of the wall is 54 degree.
According to the statement
We have to find that the angle of the depression.
So, For this purpose, we know that the
Angle of the depression is the angle formed by the line of sight and the horizontal plane for an object below the horizontal.
From the given information:
A point on the ground is 5m away from the foot of the vertical wall 7m high
We know that the
θ = angle of depression of the point from the top of the wall
Then
Tan θ = perpendicular / Base
Then substitute the values then
Tan θ = perpendicular / Base
here perpendicular is 7 and the base is 5cm
Then
Tan θ = 7/ 5
Tan θ = 1.4
Then
θ = tan^-1 (1.4)
θ = 54.4
After rounding off to the nearest degree then it becomes 54 degree.
So, The angle of the depression from the top of the wall is 54 degree.
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