circle

Related Questions

• The straight line $x-y-3=0$ touches the circle ${{x}^{2}}+{{y}^{2}}-4x+6y+11=0$ at the point whose co-ordinates are

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• If P is a point such that the ratio of the squares of the lengths of the tangents from P to the circles ${{x}^{2}}+{{y}^{2}}+2x-4y-20=0$ and ${{x}^{2}}+{{y}^{2}}-4x+2y-44=0$ is 2 : 3, then the locus of P is a circle with centre

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• The equation of the circle which passes through the point of intersection of circles ${{x}^{2}}+{{y}^{2}}-8x-2y+7=0$ and ${{x}^{2}}+{{y}^{2}}-4x+10y+8=0$ and having its centre on$y$ -axis, will be

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• The equation of the circle touching $x=0,y=0$ and $x=4$ is

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• The equation of circle whose centre lies on $3x-y-4=0$ and$x+3y+2=0$ and has an area 154 square units is

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