Free Circle equation calculator - Calculate circle's equation using center, radius and diameter step-by-step

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We can also find the radius of the circle if we wish. It is simply half of the diameter, which is given by the distance formula: D = √ ( (x2 – x1)2 + (y2 – y1)2) D = √ ( (6 – 0)2 + (-8 – 0)2) D = √ ( (6)2

Circle Calculator Circle Calculator Circle Calculator Choose a Calculation radius r = Let pi π = Units Significant Figures Answer: radius r = 12 in diameter d = 24 in circumference C =