Question

Na figura abaixo o valor de X é:

a)30°
b)40°
c)55°
d)70°

ME AJUDE PFV É PRA DAQUI A POUCO!!!​

Answer 1

$\Large\boxed{\begin{array}{l}\sf x+x+40^\circ=180^\circ\\\sf 2x=180^\circ-40^\circ\\\sf 2x=140^\circ\\\sf x=\dfrac{140^\circ}{2}\\\sf x=70^\circ\\\huge\boxed{\boxed{\boxed{\boxed{\sf\maltese~alternativa~d}}}}\end{array}}$