Question

find value of x in the following figure

Answer 1

its a kunwar pair i.e.x+2x=180°
x=60
2x=120

Answer 2

$\textbf {Your answer !!}$

$ab \: is \: a \: straight \: line. \\ \\ = > angle \: aop + angle \: aob = 180 \: (linear \: pair) \\ \\ = > x + 2x = 180 \\ \\ = > 3x = 180 \\ \\ = > x = \frac{180}{3} \\ \\ = > x = 60 \\ \\ = > angle \: aop = x = 60 \\ = > angle \: aob = 2x = 2 \times 60 = 120$

$\textbf{ Thanks !! }$