First slide

Applications of trigonometry

Question

The angle of elevation of top of an unfinished tower at a point distance 120m from its base is 45⁰. How much height must the tower be raise so that angle of elevation of top at the same point to be 60⁰.

Moderate

Solution

$\begin{array}{l} h = 120 \sqrt{3} \\ Ans: 120 (\sqrt{3} - 1) \end{array}$

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