Question

Questão 4 - Determine o valor de a figura abaixo
A) 40
B) 45
C) 50°
D) 55​

Answer 1

$\large\boxed{\begin{array}{l}\sf\alpha=\dfrac{110^\circ-30^\circ}{2}\\\sf\alpha=\dfrac{80^\circ}{2}\\\sf\alpha=40^\circ\end{array}}$