Question

what is the measurement of this angle? protractor image blank°

Explanation:

Step1: Identify the protractor scale

The horizontal ray is along the 0° (or 180°) mark on the protractor. The other ray is aligned with the 90° mark on the inner scale (since the protractor's inner scale is used here as the horizontal ray is at the 0° of the inner scale).

Step2: Determine the angle measure

The angle between the two rays is the difference between the marks they align with. Since one ray is at 0° (inner scale) and the other at 90°, the angle is 90°.

Answer:

90