Question

Gente me ajuda PF. Considerando os dados da figura, podemos dizer que a razão x/y vale:
Rápido pf

Answer 1

$\mathfrak{Note\:que\:Y\:representa\:um\:ângulo\:excentrico\: interior\: portanto}$

$100\degree=\frac{120\degree+y}{2}\\120\degree+y=200\degree \\y=200\degree-120\degree$

$y=80\degree$

$\mathfrak{Perceba\:que\:X\:representa\:um\:ângulo\:excentrico\: exterior\: portanto}$

$x=\frac{120\degree-y}{2}\\ x=\frac{120\degree-80\degree}{2} \\x=\frac{40\degree}{2}$

$x=40\degree$

$\frac{x}{y}=\frac{40\div40}{80\div40}=\frac{1}{2}$

$\boxed{\boxed{\frac{x}{y}=0,5\checkmark}}$