Three Points Circle Calculator

This calculator finds the equation of a circle given three points on the graph of the circle.

How to use the calculator 1 - Enter the x and y coordinates of three points A, B and C and press "enter". Two equations are displayed: an exact one (top one) where the coefficients are in fractional forms and a second one with approximated coefficients whose number of decimal number of decimal places may be chosen.

A = ( , )

B = ( , )

C = ( , )
Decimal Places =
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