Length of the shadow of a 15 meters high pole is meters at 7 ' O'clock in the morning. The angle of elevation of the Sun rays with the ground at that time is ____degree.

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Detailed Solution

Concept- The angle of elevation of the Sun rays with the ground at that time is 60 degrees. Create a diagram based on the statements presented here. Apply the tan ratio and take it to be the angle of elevation. Find the angle of elevation by comparing the value of tan obtained with the standard angle.
For applying trigonometric methods and standard values one angle of the triangle must be equal to

. The hypotenuse of a triangle, which is the side opposite to, remains stable whereas the perpendicular and base do rely on the angle

. In above problem, for

, base is

and perpendicular is

; but for

, base is

and perpendicular is BC.
Let

be the pole of height

and

be the shadow of the pole of length

.
Let

be the angle of elevation of the Sun rays with the ground.
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