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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 $15$ m away from its base is $60^\circ$. Find the height of the tower.
Step-by-Step Solution
Key Concept: Apply tanθ = height/distance.
$\tan60^\circ=\dfrac{h}{15}\Rightarrow \sqrt3=\dfrac{h}{15}$. [1.0 Mark]
$h=15\sqrt3$ m. [1.0 Mark]
$h=15\sqrt3$ m. [1.0 Mark]
Correct Answer:
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