circle

Related Questions

• Circles ${{x}^{2}}+{{y}^{2}}-2x-4y=0$ and ${{x}^{2}}+{{y}^{2}}-8y-4=0$

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• The line $(x-a)\cos \alpha +(y-b)$ $\sin \alpha =r$ will be a tangent to the circle ${{(x-a)}^{2}}+{{(y-b)}^{2}}={{r}^{2}}$

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• The equations of the tangents to the circle ${{x}^{2}}+{{y}^{2}}-6x+4y=12$ which are parallel to the straight line $4x+3y+5=0$ , are

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• If a circle, whose centre is (–1, 1) touches the straight line $x+2y+12=0$ , then the coordinates of the point of contact are

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• The locus of the centre of a circle which passes through the point (a, 0) and touches the line $x+1=0$ , is

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