The circumcircle of the quadrilateral formed by the lines `x=a, x=2a, y=-a, y=a` is

Area of the quadrilateral formed by the lines |x|+|y|=2is

The equation of the circumcircle of the triangle formed by the lines x=0, y=0, 2x+3y=5, is

The equation of the circumcircle of the triangle formed by the lines x=0, y=0, 2x+3y=5, is

The area of the quadrilateral formed by the lines a|x|+b|y|+c=0 is

The equation of the diagonal, through the origin, of the quadrilateral formed by the lines x=0, y=0, x+y=1 and 6x+y=3 is given by

The number of points P(x, y) with natural numbers as coordinates that lie inside the quadrilateral formed by the lines 2x+y=2, x=0, y=0 and x+y=5 is

Area of quadrilateral formed by striahgt lines x =1, x = 3, y =2 and y = x + 3 is