Question

what is the measure of this angle? the dashes are 15° apart.

Explanation:

Step1: Count the number of 15 - degree intervals

There are 3 intervals from 0° to the end - point of the angle.

Step2: Calculate the angle measure

Multiply the number of intervals by 15°. So, $3\times15^{\circ}=45^{\circ}$.

Answer:

$45^{\circ}$