Definition of Circle
What is the definition of circle?
A circle is defined as the locus of a point which moves in a plane such its distance from a fixed point in that plane is always constant.
For example: If a point P moves on a plane in such a manner that its distance from a fixed point C (say) on the plane is always the same then the locus of the moving point P is called a Circle. The fixed point C is called the Centre of the circle and the constant distance CP is called the Radius of the circle.
● The Circle
- Definition of Circle
- Equation of a Circle
- General Form of the Equation of a Circle
- General Equation of Second Degree Represents a Circle
- Centre of the Circle Coincides with the Origin
- Circle Passes through the Origin
- Circle Touches x-axis
- Circle Touches y-axis
- Circle Touches both x-axis and y-axis
- Centre of the Circle on x-axis
- Centre of the Circle on y-axis
- Circle Passes through the Origin and Centre Lies on x-axis
- Circle Passes through the Origin and Centre Lies on y-axis
- Equation of a Circle when Line Segment Joining Two Given Points is a Diameter
- Equations of Concentric Circles
- Circle Passing Through Three Given Points
- Circle Through the Intersection of Two Circles
- Equation of the Common Chord of Two Circles
- Position of a Point with Respect to a Circle
- Intercepts on the Axes made by a Circle
- Circle Formulae
- Problems on Circle
11 and 12 Grade Math
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