allery14 m দৈৰ্ঘ্যৰ এখন জখলা ভূমিৰ সৈতে 30° কোণত আউজি আছে। ইয়াৰ ওপৰৰ অংশই বেৰখনৰ কিমান উচ্চতাত স্পৰ্শ কৰিছে?
A7√3 m
B14√3 m
C7 m
D14 m
Answer & Solution
Correct answer: C. 7 m
উচ্চতা = 14 x sin 30 ডিগ্ৰী = 14 x 1/2 = 7 m।
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