Question

Calcule o valor de x e y nos ângulos opv abaixo:

Answer 1

$\Large\boxed{\begin{array}{l}\rm a)\\\sf x=25^\circ\\\sf y=155^\circ\\\rm b)\\\sf 2x=145^\circ\\\sf x=\dfrac{145^\circ}{2}\\\\\sf x=72^\circ30'\\\sf 2y=35^\circ\\\sf y=\dfrac{35^\circ}{2}\\\\\sf y=17^\circ30'\end{array}}$

$\Large\boxed{\begin{array}{l}\rm c)\\\sf 3x-50^\circ=x+30^\circ\\\sf 3x-x=30^\circ+50^\circ\\\sf 2x=80^\circ\\\sf x=\dfrac{80^\circ}{2}\\\\\sf x=40^\circ\\\sf 5y-10^\circ=3y+30^\circ\\\sf 5y-3y=30^\circ+10^\circ\\\sf 2y=40^\circ\\\sf y=\dfrac{40^\circ}{2}\\\\\sf y=20^\circ\end{array}}$