circle

Related Questions

• The equations of the tangents to the circle ${{x}^{2}}+{{y}^{2}}=50$ at the points where the line $x+7=0$ meets it, are

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• If the lines $x+y=6$ and $x+2y=4$ be diameters of the circle whose diameter is 20, then the equation of the circle is

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• The two circles which passes through $(0,a)$ and $(0,-a)$ and touch the line $y=mx+c$ will intersect each other at right angle, if

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• If the length of tangent drawn from the point (5, 3) to the circle ${{x}^{2}}+{{y}^{2}}+2x+ky+17=0$ be 7, then $k =$

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• If circles ${{x}^{2}}+{{y}^{2}}+2ax+c=0$ and ${{x}^{2}}+{{y}^{2}}+2by+c=0$ touch each other, then

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