Answer:
equal
Explanation:
Ages are numbers. Numbers can be equal, not congruent.
Congruent means two (or more) different things that have the same measure, such as two line segments, two angles, two triangles, two polygons, etc. For example, if the length of line segment AB is 5 cm, and the length of line segment CD is 5 cm, the lengths of the segments are equal, but the segments themselves are congruent.