Question

Find the value of $x$ in the following figure:

Answer 1

$\Rightarrow \frac{x}{3}+{120}^0={180}^0$

$\Rightarrow \frac{x}{3}={180}^0-{120}^0={60}^0$

$\Rightarrow x={60}^0\times 3={180}^0$