Question

determine as lei dos senos,resolva a questão ​

Answer 1

$\mathsf{\dfrac{10}{\sin(60^{\circ})}=\dfrac{x}{\sin(45^{\circ})}}$

$\mathsf{10\sin(45^{\circ})=x\sin(60^{\circ})}\\\mathsf{10.\dfrac{\sqrt{2}}{\cancel2}=x.\dfrac{\sqrt{3}}{\cancel2}}$

$\mathsf{x\sqrt{3}=10\sqrt{2}}\\\mathsf{x=\dfrac{10\sqrt{2}}{\sqrt{3}}}$

$\boxed{\boxed{\mathsf{x=\dfrac{10\sqrt{6}}{3}}}}$