medium · GRE Quantitative Reasoning
A circle is centered at the origin. If the point (3, 4) lies on the circle, which of the following is the equation of the circle?
- x^2 + y^2 = 5
- x^2 + y^2 = 7
- x^2 + y^2 = 12
- x^2 + y^2 = 25
- x^2 + y^2 = 49
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