find the value of sin 30 and sin 60 , geometrically .

sin 30

Consider an equilateral ∆ABC with sides AB = BC = CA = 2a. sin 60Consider an equilateral ∆ABC with sides AB = BC = CA = 2a.

In triangle ABD, apply Pythagoras theorem to get,

In triangle ABD,

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refer the links:

for sin60 = https://www.meritnation.com/ask-answer/question/find-the-value-of-sin60-geometrically/introduction-to-trigonome.../4815392

for sin30 = https://www.meritnation.com/ask-answer/question/find-the-value-of-sin30-geometrically/introduction-to-trigonometry/1200987

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thanx gdgd gdgd

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