Question

lines a and b are parallel.
what is the measure of angle m?
enter your answer in the box.
$m = \square^\circ$

Explanation:

Step1: Identify supplementary angles

The 125° angle and $m^\circ$ are supplementary (they form a straight line, so their sum is 180°).

Step2: Calculate $m$

Subtract 125 from 180 to find $m$.
$m = 180 - 125$

Answer:

$55$