Respuesta :

choixongdong
sinR = Opp / Hypo = 8/10
sinR = 4/5
morganlouch01oriely
Since sine is equal to opposite over hypotenuse, you would create the fraction 8/10. 8 and 10 are both divisible by 2, so that fraction would reduce to 4/5, which is the answer. 

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