If we know that the blue angle is MEASURE degrees, what is the measure of the orange angle?
MEASURE
What is the measure of the pink angle?
The pink and blue angles add up to 180 because they are adjacent and form a straight line.
\color{#FF00AF}{\text{pink angle}}= 180^{\circ} - \color{#6495ED}{MEASURE^{\circ}} = \color{#FF00AF}{180 - MEASURE^{\circ}}
The pink and orange angles also add up to 180 because they are adjacent and form a straight line too.
\color{#FFAF00}{\text{orange angle}}= 180^{\circ} - \color{#FF00AF}{180 - MEASURE^{\circ}} = \color{#FFAF00}{MEASURE^{\circ}}