Question

What is theory of circles?​

Answer 1

Answer:

The definition of a circle is: A set of points in a plane that are equidistant to a given point, the centre. The blue line in the drawing below is the circle. ... The distance between the centre and the circle is called the radius*1. The distance circle-circle through the centre is called the diameter.

Answer 2

Explanation:

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• A circle is all points in the same plane that lie at an equal distance from a center point. The circle is only composed of the points on the border. ... A circle is the same as 360°.