What is name a point that is sqrt(2)away from (-1 5)?

A point that is sqrt(2) away from (-1, 5) can be found by moving sqrt(2) units in any direction from the point (-1, 5). For example, one such point would be (-1+sqrt(2), 5). Another point would be (-1, 5+sqrt(2)). There are an infinite number of points that are sqrt(2) away from (-1, 5).