Basic Mathematics
# Angles and Lines

$\overline{AB}$ is a straight line, what is $x$?

Given that

In the above diagram, the purple angle at $\color{#69047E}{C}$ equals $\color{#69047E}{ 147}^\circ$ and the blue angle at $\color{#3D99F6}{B}$ equals $\color{#3D99F6} {123} ^ \circ$. What is the measure of the green angle at $\color{#20A900}{A}$?

Note: The diagram is not drawn to scale.