Question

the measure of $angle 1$ is $130^\circ$.
what is the measure of $angle 2$
$m\angle 2 = \square^\circ$

Explanation:

Step1: Identify supplementary angles

$\angle 1$ and $\angle 2$ are supplementary, so $m\angle 1 + m\angle 2 = 180^\circ$

Step2: Solve for $m\angle 2$

Substitute $m\angle 1 = 130^\circ$:
$m\angle 2 = 180^\circ - 130^\circ$

Answer:

$50^\circ$