A 60º
B 45º
C 30º
D 15º
Correct Answer: Option A
মনেকরি, গাছটির উচ্চতা = 3
এবং ছায়ার দৈর্ঘ্য = √3
tanθ= লম্ভ/ভূমি
⇒tanθ= 3/√3
⇒tanθ= √3
⇒tanθ = tan60°
⇒θ = tan60°
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