Coordinate Geometry - Finding the Centre and Radius of a Circle
Coordinate Geometry - Finding the Centre and Radius of a Circle
A circle has equation \({{x}^{2}}+{{y}^{2}}+4x-12y+15=0\ .\)
- Find the centre and the radius of the circle.
- Is the point \(\left( 0,2 \right)\) inside the circle? Explain your answer clearly.
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Answer:(a) Centre \(=(-2,6)\), radius \(=5\) (b) \((0,2)\) lies inside the circle.
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