alleryএকটি 10 m মই অনুভূমিক ভূমির সাথে 60° কোণে হেলান দিয়ে রাখা আছে। এটি কতটা উচ্চতায় পৌঁছায়?
A5√2 m
B5√3 m
C10 m
D5 m
Answer & Solution
Correct answer: B. 5√3 m
উচ্চতা = 10 x sin 60 degrees = 10 x √3/2 = 5√3 m।
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