Prove that sin 30 is 1/2

1.	Prove that sin 30 is 1/2
Answer» Draw a equlateral triangle with side 2a . Now draw its median which is angle bisector also . It divides side of triangle in two equal parts each of a. now upple angle is 30 median subtend right angle and third angle is 60 . Use formula for sin =p/h

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