Centre of the circle is (a, b) . If (0,3) and (2,0) are two points on a circle , then find the relation between a and b .

A circle with centre '(3,4)' passes through the origin. a) What is the radius of the circle. b) If a point on the circle is '(x, y)', write the relation between 'x, y'. c) Check whether the point '(-2,1)', lies on this circle.

Centre of circle , passing through (0,0) ,(a,0) and (0,b) , is

Centre of circle , passing through (0,0) ,(a,0) and (0,b) , is

If A(10,11) and B(2,3) are the coordinates of end points of diameter of circle . The find the centre of the circle .

C' is the centre of the circle passing through the origin. Circle cúts the 'y' axis at 'A(0,4)' and the axis at 'B(4,0)'. a) Write coordinates of C. b) Write the equation of the circle. c) '(0,0)' is a point on the circle. There is one more point on the circle with. 'x' and y coordinates'equal. Which is that point?

If the circle x^(2) + y ^(2) + ax + by - 12=0 has the centre at (2,3) then find a, b and the radius of the circle .

Find the equation of the circle with (a) centre (0,2) and radius 2 (b) centre (-2,3) and radius 4

Two circles with centres A and B inrtersect each other at the points C and D. The centre B of the other circle lies on the circle with centre A. if angle CQD=70^(@) , then find the value of angle CPD .