Question

what is the angle of rotation for this counterclockwise rotation about the origin? 360° 180° correct 270° or 90° counterclockwise 90°

Explanation:

Step1: Analyze rotation characteristics

Observe the orientation change of the figure. A $90^{\circ}$ counter - clockwise rotation about the origin changes the orientation of a figure in a specific way. If it were a $180^{\circ}$ rotation, the figure would be flipped completely to the opposite side, and a $360^{\circ}$ rotation would bring it back to its original position. From the visual change of the figure in the picture, it has undergone a $90^{\circ}$ counter - clockwise rotation.

Answer:

$90^{\circ}$