Standard equation of circle

Definition|Standard Equation Of Circle|Equation Of Circle In Diameter form|Equation Of Circle In Parametric Form|Intercepts Cut By Circle On Axes|Important Questions|Circle- Special Forms|Position Of Point wrt Circle |Important Questions|OMR

Find the standard equation of the circle passing through the points P(3, 8) , Q(9 ,6) and R(13, -2) .

Standard equation of parabola various results for parabola focal distance

Definition of circle | General equation of circle

y=mx is a chord of equation of circle x^(2)+y^(2)-2ax=0. Find the equation of circle this chord is diameter of a circle.

The endpoints of a diameter of a circle are (3,1) and (9,5) , then equations of circle is

Standard equation OF hyperbola

If the equations of the two diameters of a circle are x-y=5 and 2x+y=4 and the radius if the circle is 5, find the equation of the circle.