Find the centre and radius of each of the following circles :
The general form of the equation of a circle is:
(x - h)2 + (y - k)2 = r2
Where, (h, k) is the centre of the circle.
r is the radius of the circle.
Comparing the given equation of circle with general form we get:
h = 1/2 , k = - 1/3, r2 = 1/16
⇒ centre = (1/2, - 1/3) and radius = 1/4 units.
Ans: centre = (1/2, - 1/3) and radius = 1/4 units.