In Euclidean geometry, the radical axis of two non-concentric circles is the set of points whose powers with respect to the circles are equal. For this reason the radical axis is also called the power line or power bisector of the two circles.
In Euclidean geometry, the radical axis of two non-concentric circles is the set of points whose powers with respect to the circles are equal. For this reason the radical axis is also called the power line or power bisector of the two circles.
Source: Wikipedia "Radical axis" · CC BY-SA 4.0
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