Circle
A circle is the set of all points in a plane that are the same distance from a given point called the center.
Example 1
![Picture](/uploads/1/5/9/5/15954846/1369973424.jpg)
This scene in the the movie Harry Potter and the Goblet of Fire takes place during the first day feast at Hogwarts. At this moment, all the students are listening to Professor Dumbledore tell them about the Triwizard Tournament. The circle is the lens on Harry's glasses.
This scene is not in the book.
Example 2
![Picture](/uploads/1/5/9/5/15954846/1369969107.jpg)
This scene in the the movie Harry Potter and the Goblet of Fire takes place at Hogwarts when Cedric Diggory is placing his name in the Goblet of Fire. The circle is the rim of the Goblet of Fire.
This scene is not in the book.