Which inner circle is bigger? Surely the one on the right? Maybe not, this Ebbinghaus illusion uses Titchener circles to create an illusion based on relative size perception. Find a range of awesome optical illusions here at Kids Math Games Online. Enjoy free pictures and images that deceive the eye and are sure to put your brain to work.
To save this cool optical illusion simply right click on the picture and select 'save image as'.