To determine which objects are not arranged around a perfect circle, carefully analyze the placement and rotation consistency of each set of objects in the images given as options. Perfect circular arrangements imply that the objects are equidistant from the center and equally spaced in terms of angle of rotation.
Steps to identify non-circular arrangements:
Examine the distance of each object from a central pivot point. If the distance varies, they might not be positioned in a circular layout.
Check the angular displacement between consecutive objects. If inconsistencies in rotation are observed, the configuration might deviate from a circular pattern.
Conclusion:
The objects in these images are not equidistant or uniformly rotated, indicating that they do not follow a circular arrangement. Thus, these options are not arranged around a perfect circle.