Optical illusions can warp your ability to see objects clearly. This illusion of a circle coincident with angular lines is a good illustration.

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Optical Illusions Home > Optical Illusion Gallery > Circle Optical Illusion

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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