a man stands 25m away from the foot of an electric post sees the top of the post at an angle of elevation 20 find the height of the post
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Answer:
We have already learnt about trigonometry in previous units in detail. Trigonometry has its own applications in mathematics and in physics. One such application of trigonometry in mathematics is "height and distances". To know about height and distances, we have to start from the most basic part of that, which is "angle of elevation" and "angle of depression". The first and foremost angles that we are going to study about here is angle of elevation. In this part of height and distances we will be discussing about angle of elevation in detail.
Definition of Angle of Elevation:
The angle of elevation of an object as seen by the observer is defined as the angle between the horizontal and the line from the object to the observer’s eye. The line in which observer’s eye is there is known as the line of sight.
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