What are congruent circles?

Congruent circles are circles that have the same size or radius. In geometry, two circles are said to be congruent if they have equal radii. This means that every point on one circle is equidistant from the center of the circle as the corresponding point on the other circle.

Congruent circles have the same shape but may be positioned differently in space. They can be translated, rotated, or reflected in relation to each other, but their sizes remain identical.

It's important to note that congruence applies to many geometric figures, not just circles. In general, congruent shapes have the same size and shape, whereas similar shapes have the same shape but may have different sizes.