Question

1. find the measure of angle x.

Explanation:

Step1: Recognize supplementary angles

The angles $x$ and $45^\circ$ form a straight line, so they are supplementary (sum to $180^\circ$).

Step2: Set up the equation

$x + 45^\circ = 180^\circ$

Step3: Solve for $x$

$x = 180^\circ - 45^\circ$

Answer:

$135^\circ$