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Some Applications of Trigonometry
CH09 Question Bank
CBSE_CH09_QUESTION_BANK
Grade 10

Question:

The angle of elevation of the top of a tower from a point on the ground is $30^\circ$. If the height of the tower is $50$ m, find the distance of the point from the base of the tower.

Step-by-Step Solution

Key Concept: Apply tanθ = height/distance.
$\tan30^\circ=\dfrac{50}{d}\Rightarrow \dfrac{1}{\sqrt3}=\dfrac{50}{d}$. [1.0 Mark]

$d=50\sqrt3$ m. [1.0 Mark]

Correct Answer:
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