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Find the value of sin 60° geometrically.

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Find the value of sin 60° geometrically.

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1 Answer

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Best answer

Let ∆ABC be an equilateral triangle, then 

AB = BC = AC = 2a 

AD ⊥ BC 

Also AD is median, 

CD = a = BD 

∠A = ∠B = ∠C = 60° 

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