Question

what is the measure of this angle? m∠abc = ?

Explanation:

Step1: Identify starting side

The starting side of the angle $\angle ABC$ is ray $BC$ which is aligned with the $0^{\circ}$ mark on the protractor.

Step2: Identify ending side

The ending side of the angle is ray $BA$. It points to the mark of $250^{\circ}$ on the protractor.

Answer:

$250^{\circ}$