In geometric notation, if line AB is perpendicular to line EF, what does this indicate?

When line AB is described as perpendicular to line EF, it indicates that these two lines intersect at a right angle. This geometric relationship establishes a specific condition where the angle formed between them is exactly 90 degrees. Therefore, stating that line segment AB is perpendicular to line segment EF is accurate because it correctly captures the essence of their relationship as defined by the term "perpendicular."

In geometry, the term "perpendicular" inherently conveys that not only are the two lines intersecting, but they do so in a specific way that ensures the formation of right angles, which is a crucial concept when analyzing angles and shapes within the field.