If you mean: x^2 + y^2 = 64 then the radius of the circle is 8
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Type your answer here. Find the radius for a circle with the equation x2 plus y2 equals 9? ..
Radius = 1111
Equation of a circle centre the origin is: x2 + y2 = radius2 ⇒ radius = √9 = 3.
5. A circle with centre (0,0) has equation: x2 + y2 = radius2 With: x2 + y2 = 25 = 52 The radius is 5.
If that means = 36 then then the radius of the circle is 6 units