Question

Qual é o valor de x na figura?



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Answer 1

$\Large\boxed{\begin{array}{l}\sf\dfrac{x}{sen(45^\circ)}=\dfrac{4}{sen(30^\circ)}\\\\\sf 4\cdot sen(45^\circ)=x\cdot sen(30^\circ)\\\\\sf4\cdot\dfrac{\sqrt{2}}{\backslash\!\!\!\!2}=x\cdot\dfrac{1}{\backslash\!\!\!\!2}\\\\\sf x=4\sqrt{2}\end{array}}$