vamos usar a lei dos senos
100/sen(30)=x/Sen(45)
100/1/2=x/√2/2
100√2/2=1/2.x
x=2.50√2
x= 100√2
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vamos usar a lei dos senos
100/sen(30)=x/Sen(45)
100/1/2=x/√2/2
100√2/2=1/2.x
x=2.50√2
x= 100√2