Show that the points `A(1, 0), B(2, -7), C(8, 1)` and `D(9,-6)` all lie on the same circle. Find the equation of this circle, its centre and radius.

Find the equation of the circle with: centre (0,-1) and radius 1.

Find the equation of the circle with: centre (0,-1) and radius 1.

Find the equation of the circle with centre: (1, 1) and radius

Find the equation of the circle with centre at (-1,0) and radius 2.

The equation of the circle with centre (0,7) and radius 7 is

Find the equation of the circle with : Centre (1, -5) and radius 7 .

Find the equation of the circle with : Centre (1, -5) and radius 7 .

Show that the points A(5,5), B(6,4), C(-2,4) and D(7,1) all lies on the circle. Find the centre, radius and equation of circle.

Show that the points A(5,5),B(6,4),C(-2,4) and D(7,1) all lies on the circle.Find the centre,radius and equation of circle.

Show that the points (5, 5 ), (6, 4 ), (-2, 4) and (7, 1 ) are concyclic, i.e., all lie on the same circle. Find the equation, centre and radius of this circle.