Lei dos senos
[tex]\large\boxed{\begin{array}{l}\sf\dfrac{x}{sen(45^\circ)}=\dfrac{100}{sen(30^\circ)}\\\sf x\cdot sen (30^\circ)=100\cdot sen(45^\circ)\\\sf x\cdot\dfrac{1}{\diagdown\!\!\!2}=100\cdot\dfrac{\sqrt{2}}{\diagdown\!\!\!2}\\\sf x=100\sqrt{2}\end{array}}\blue{\checkmark}[/tex]
