Adjacent cells are cells that are together, and do not have other cells between each other. A cell beside another one are together called adjacent cells, as are cells that are above or below each other and touching. So A1 and A2 are adjacent cells, as are B1 and C1. A1 and C1 are not adjacent cells as B1 is between them. A1, B1 and C1 would be adjacent cells.
A range.
I'm not very interested in nonadjacent properties.
Ajt
a cornere
Sometimes they are, sometimes they are not.
congruent
diagonal
Adjacent angles share a vertex and one ray, while any two angles that don't share both those things are nonadjacent.
Vertical
diagonals
Nonadjacent angles formed by two intersecting lines are pairs of angles that do not share a common vertex or side. When two lines intersect, they create four angles, and the angles that are opposite each other are called vertical angles, which are nonadjacent. For example, if two lines intersect, the angles formed at the intersection can be labeled as angles 1, 2, 3, and 4; angles 1 and 3, as well as angles 2 and 4, are nonadjacent to each other.
Verticle angles.