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Define "circle"?

9 Answers
Define "circle"?
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A circle is a line forming a closed loop, every point on which is a fixed distance from a center point.
Properties of circles are the following:
1. Center
2. Radius
3. Diameter
4. Circumference
5. Area
6. Chord
7. Tangent
8. Secant..

**and also Wikipedia defines circle as a simple shape of Euclidean geometry consisting of those points in a plane which are equidistant from a given point, the centre (also spelled "center").

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A circle is an ellipse where the minor and major radii are equal in length. It is given by the equation (x-h)^2/r^2+(y-k)^2/r^2=1. In this equation the center of the circle is located at point h,k and r^2 represent the length of either radius squared. Finally the circumference of a circle that is its perimeter is 2*Pi*r and its area is Pi*r^2.

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The set of points in a plane which are at a constant distance 'r'(>=0)from a fixed point c is called a circle..The fixed point is called "center" and the constant distance "r" is called "the radius of the circle"..........
The equation of the circle is

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A circle is the path traced by a point that maintains a fixed distance from a point called the centre of the circle and the fixed distance is called the radius of the circle.

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A

The figure formed by the group of points that are an equal distance from a point, or center. The angles of a circle add up to 360 degrees.

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Your questions are the best.

A circle is a simple Euclidean geometric shape. For an example, see the letter O.

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A circle is an infinite amount of points, which are all at a constant distance(radius) from a fix point (center).

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A closed plane curve consisting of all points at a given distance from a point within it called the center.

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A circle has no end and no beginning. Most circles are measured by Radius, circumference or diameter.

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