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Mathematics 9 Online
OpenStudy (anonymous):

Trigonometry Help!

OpenStudy (anonymous):

OpenStudy (anonymous):

@ganeshie8

OpenStudy (anonymous):

@thomaster

OpenStudy (futureescape):

The sin of 120 is .866 which eliminates options c and d. square root of 3 is 1.732. 1.732 / 2 = .866 The answer is A.

OpenStudy (shamim):

OpenStudy (anonymous):

sin (pi - x) =sin(x) so sin (120) = sin (180 - 60) = sin (60) = sqrt(3)/2

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