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प्रश्न
If the length of the shadow of a tower is `sqrt(3)` times that of its height, then altitude of the sun is ______.
पर्याय
45°
30°
60°
15°
MCQ
रिकाम्या जागा भरा
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उत्तर
If the length of the shadow of a tower is `sqrt(3)` times that of its height, then altitude of the sun is 30°.
Explanation:
In ΔABC,
tan θ = `(AB)/(BC)`
= `h/(hsqrt(3))`
= `1/sqrt(3)`
= tan 30°
∴ θ = 30°
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