circle

Related Questions

• The equation of the tangent to the circle ${{x}^{2}}+{{y}^{2}}-2x-4y-4=0$ which is perpendicular to $3x-4y-1=0$ , is

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• The points of intersection of the line $4x-3y-10=0$ and the circle ${{x}^{2}}+{{y}^{2}}-2x+4y-20=0$ are

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• A circle is concentric with the circle ${{x}^{2}}+{{y}^{2}}-6x+12y+15=0$ and has area double of its area. The equation of the circle is

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• A circle with centre (a, b) passes through the origin. The equation of the tangent to the circle at the origin is

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• Line $y=x+a\sqrt{2}$ is a tangent to the circle ${{x}^{2}}+{{y}^{2}}={{a}^{2}}$ at

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