A student sitting in a classroom sees a pictures on the black boar | Filo
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Class 10

Math

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Some Applications of Trigonometry

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A student sitting in a classroom sees a pictures on the black board at a height of from the horizontal level of sight. The angle of elevation of the picture is . As the picture is not clear to him, he moves straight towards the black board and sees the picture at an angle of elevation . Find the distance moved by the student.

Solution: Let represent the board
represents I position of student
represents II position of student
In ,



In ,


( )


m
The distance moved by the student m.
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