Question

so it’s the angle sun theory but i don’t understand it at all

Answer 1

ANSWER

$30\degree$

EXPLANATION

The angle sum theory states that:

This implies that:

$x+x+60+60=180$

Solve for x in the equation above:

$\begin{gathered} 2x+120=180 \\ \Rightarrow2x=180-120=60 \\ x=\frac{60}{2} \\ x=30\degree \end{gathered}$

That is the value of x.