Question

Determine a medida do ângulo x sabendo que as retas r e s são paralelas: PFVRRR ME AJUDEMM
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Answer 1

$\large\boxed{\begin{array}{l}\rm Pelo\,teorema\,dos\,\hat angulos\,bicos\\ \rm x+30^\circ=70^\circ+80^\circ\\\rm x+30^\circ=150^\circ\\\rm x=150^\circ-30^\circ\\\rm x=120^\circ\end{array}}$