Three students attempt to define what a circle is. Which definition is correct? ![](http://admin.getprephub.com/media/editor/pt3_20230124194446330634.png)

Answer Ruby's definition is incorrect. She appears to have been thinking of a sphere instead of a circle. Shriya's definition is very interesting, but it too is incorrect. To see why it is incorrect, we can consider an example of a shape that fits her definition but is not a circle, such as the following: ![](http://admin.getprephub.com/media/editor/pt3s_20230124194524288173.png) A circle but 2 parts of it are missing on opposite sides Abhishek's definition is correct.

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MCQ

Three students attempt to define what a circle is. Which definition is correct?

Select all that apply :

Abhishek

Shriya

Ruby

None of the above

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