For a region R, the set of points that are adjacent to the complement of R is called as ________
A)boundary
B)border
C)contour
D)all of the mentioned

Question

Quizplus · Accepted Answer

The set of points that are adjacent to the complement of a region R is referred to as the boundary, border, or contour of R. These terms are often used interchangeably in various contexts to describe the dividing line or the edge between a region and its complement.

For a Region R, the Set of Points That Are