A flag-staff of height h stand on the top of a school building. If | Filo
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Some Applications of Trigonometry

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A flag-staff of height h stand on the top of a school building. If the angles of elevation of the and bottom of the flag-staff have measure and are respectively from a point on the ground, prove that the height of the building is

Solution:
Let AB be the tower and (A, B)
the flag staff, CAhm
Let D be observation point, such that angle of elevation of top & c bottom, be & respectively.
In ,
…………..
In ,
………
Equating & equation,
,
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