If this is the equation of a circle, the answer is 11, except that there needs to be a plus sigb between the x2 and the y2
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Radius = 1111
Centre = (0,0), the origin; radius = 11
8
5. A circle with centre (0,0) has equation: x2 + y2 = radius2 With: x2 + y2 = 25 = 52 The radius is 5.
Type your answer here. Find the radius for a circle with the equation x2 plus y2 equals 9? ..