How to find the equation of circle 1. To solve the equation of a circle with radius 1 and center point (4, - 1) 2. Find the equation of the circle passing through the intersection of the straight line x + 3Y + 7 = 0 and 3x-2y-12 = 0, and the center of the circle is point C (- 1,1) 3. Solving the equation of a circle passing through three points o (0,0), m (1,0), n (0,2)

How to find the equation of circle 1. To solve the equation of a circle with radius 1 and center point (4, - 1) 2. Find the equation of the circle passing through the intersection of the straight line x + 3Y + 7 = 0 and 3x-2y-12 = 0, and the center of the circle is point C (- 1,1) 3. Solving the equation of a circle passing through three points o (0,0), m (1,0), n (0,2)

1, (x-4) * (x-4) - (y + 1) * (y + 1) = 12, the intersection of two straight lines (- 16,3), the radius of the center of the circle is the distance from the center of the circle to the intersection, the equation is (x + 1) * (x + 1) + (Y-1) * (Y-1) = 229.3, the distance from the center of the circle to the three points is equal, the center of the circle is (1 / 2,1), the equation of the circle is: (x-1 / 2) * (x-1 / 2) + (Y-1) * (Y-1)