circle

Related Questions

• The radius of the circle, having centre at (2,1) whose one of the chord is a diameter of the circle ${{x}^{2}}+{{y}^{2}}-2x-6y+6=0$ is

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• The area of the triangle formed by the tangents from the points (h, k) to the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ and the line joining their points of contact is

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• For all values of $\theta$ , the locus of the point of intersection of the lines $x\cos \theta +y\sin \theta =a$ and $x\sin \theta -y\cos \theta =b$ is

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• The value of k so that ${{x}^{2}}+{{y}^{2}}+kx+4y+2=0$ and $2({{x}^{2}}+{{y}^{2}})-4x-3y+k=0$ cut orthogonally is

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• The number of circles touching the lines $x=0$ , $y=a$ and $y=b$ is

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