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.


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