The area of the upper half of the circle whose equation `(x-1)^(2)+y^(2)=1` is given by

The circle whose equation is x^2+(y-1)^2 = 1 has the centre.....

If one of the diameters of the circle, given by the equation x ^(2) + y^(2) + 4x + 6y -12 =0, is a chord of a circle S, whose centre is (1,-3), the radius of S is

The circle whose equation is x^2 + (y - 1)^2 = 2 has the centre……………….

The area of the triangle whose combined equation (2x^(2)-xy-y^(2)+x+2y-1) (x+y+1)=0 is

Find the centre and radius of each of the circles whose equations are given below. 3x^(2) + 3y^(2) - 6x - 12y - 1 =0 Find the radius and centre of the circle.

Find the centre of the circle whose parametric equations are x = - (1)/(2) (1 + 5 cos theta ) , y = (1)/(2) (-2 + 5 sin theta) .

Find the centre and radius of each of the circles whose equations are given below. 2x^(2) + 2y^(2) - 3x + 2y - 1 =0

x^(2)+y^(2)-6x+8y=56 What is the area of a circle whose equation is given above?

Find the equation to the circle whose parametric equations are, x = (1)/(2)(1+5 cos theta), y = (1)/(2)(-2 + 5sin theta)