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Some Applications of Trigonometry
CH09 Question Bank
CBSE_CH09_QUESTION_BANK
Grade 10
Question:
A tree is $12$ m tall. Find the distance of a point on the ground from the base of the tree, at which the angle of elevation of the top of the tree is $45^\circ$.
Step-by-Step Solution
Key Concept: Apply tanθ = height/distance.
$\tan45^\circ=\dfrac{12}{d}\Rightarrow 1=\dfrac{12}{d}$. [1.0 Mark]
$d=12$ m. [1.0 Mark]
$d=12$ m. [1.0 Mark]
Correct Answer:
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