Answer:

The general form of the equation of a circle is  (x – h)² + (y – k)² = r²

(h, k) is the centre of the circle. r is the radius of the circle.

Comparing the given equation of circle with general form,

h = – 5 , k = 3, r² = 20

Centre = ( – 5, 3)

Radius = √20 => 2√5 units.