Area of the circle passing through P(1,7) and whose Centre at (9,13) is ( In square units)

3.The equation of the circle passing through (3,6) and whose centre is (2,-1) is

Find the area of the circle passing through (-2,3) with centre (5,2) .

Write the area of the circle passing through (-2,6) and having its centre at (1,2).

Find the centre of the circle passing through (5,-8),(2,-9) and (2,1).

If the centre of a circle is (2a,a-7) ,then Find the value of a , if the circle passes through the point (11,-9) and has diameter 10sqrt(2) units .

Find the equation of a circle passes through the point (1,-1) and whose centre is at origin.

Find the equation(s) of circle passing through the points (1,1),(2,2) and whose radius is 1 unit

The equation ofa circle which passes through (1,2) and (2,1) and whose radius is 1 units is

(0,0) is the centre of the circle passing through the vertices of an equilateral triangle. If the length of the median of the triangle is 9 units then equation of the circle is