When is a circle not a circle? In this visual optical illusion you may not be sure.Half the people you know are below average.
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Circle Optical Illusion

Is the circle a perfect circle?

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When is a circle not a circle? In this optical illusion you may not be sure.

 

Scroll down for the answer and explanation.

 

 

 

Yes, it really is a perfect circle.

Explanation

In this optical illusion, the angled lines trick the eyes into seeing the circle as not perfectly round.

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