Area enclosed by a circle = π × area of the shaded square · Circle of radius r = 1, centre (a, b) = (1.2, −0.5) · Upper semicircle with radius 1 and center (0, 0) ...
To find the equation of a circle when you know the radius and centre, use the formula ( x − a ) 2 + ( y − b ) 2 = r 2 , where ( a , b ) represents the centre of ...
The general form of the equation of circle is: x2 + y2 + 2gx + 2fy + c = 0. This general form is used to find the coordinates of the center of the circle and ...