Question

1. find the measure of angle m. 75°

Explanation:

Step1: Identify supplementary angles

Angle $m$ and $75^\circ$ are supplementary, so their sum is $180^\circ$.
$m + 75^\circ = 180^\circ$

Step2: Solve for $m$

Subtract $75^\circ$ from both sides.
$m = 180^\circ - 75^\circ$

Answer:

$105^\circ$