document.write( "Question 39543: why should we take sin theta as opposite/hypotenuse is there any proof for it can u please send it to me on my email address \n" ); document.write( "
Algebra.Com's Answer #24987 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
It is merely how we define the term sin(theta). It is not a proof, it is a definition. \n" ); document.write( "
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