What is the radius of a circle whose equation is x2 + y2 + 8x – 6y + 21 = 0?
The radius of a circle whose equation is x2 + y2 + 8x – 6y + 21 = 0 is 5units.
The radius of a circle whose equation is x2 + y2 + 8x – 6y + 21 = 0 is 5units.