circle

Related Questions

• The length of common chord of the circles ${{(x-a)}^{2}}+{{y}^{2}}={{a}^{2}}$ and ${{x}^{2}}+{{(y-b)}^{2}}={{b}^{2}}$ is

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• A line meets the coordinate axes in A and B. A circle is circumscribed about the triangle OAB. If m and n are the distance of the tangents to the circle at the points A and B respectively from the origin, the diameter of the circle is

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• If the lines ${{l}_{1}}x+{{m}_{1}}y+{{n}_{1}}=0$ and ${{l}_{2}}x+{{m}_{2}}y+{{n}_{2}}=0$ cuts the axes at con-cyclic points, then

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• Length of the tangent from $({{x}_{1}},{{y}_{1}})$ to the circle ${{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0$ is

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• If the centre of a circle is (2, 3) and a tangent is $x+y=1$ , then the equation of this circle is

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