Respuesta :

Cukiemihu
First find the length of the hypotenuse using pythagorean theorem
c^2 = 5^2 + 7^2
c^2 = 25 + 49
c^2 = 64
c=8 (take the square root in both sides)
Since sin = opposite/hypotenuse,
sin = 5/8 = 0.625

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