Answer:
x = 9.83
Explanation:
Reference angle = 55°
Opposite = x
Hypotenuse = 12
Apply trigonometric function SOH:
Sin 55 = Opp/Hyp
Sin 55 = x/12
12 × Sin 55 = x
9.82982453 = x
x = 9.83 (nearest hundredth)
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