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In the angle of depression, the object is below the
Vertical line
Line of sight
Horizontal line
None of these
In the angle of depression, the object is below the horizontal line.
At a certain instant, the ratio of the lengths of a pillar to its shadow is 1:√2. At that instant, the angle of elevation of the Sun is
30°
45°
60°
Let AB be the pillar and AC be the shadow. Let ∠ACB = θ
θ = 45°
The line drawn from the eye of an observer to the point in the object where the person is viewing is called the
Elevation line
Observer’s line
The line drawn from the eye of an observer to the point in the object where the person is viewing is called the line of sight.
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