Question

the angles opposite of each other when two lines cross
two angles whose sum measures 180 degrees
lines that intersect to form a 90 degree angle
a line that intersects two or more lines
what is a transversal?

Explanation:

A transversal is defined as a line that intersects two or more lines. In geometry, when a transversal intersects parallel lines, it creates various types of angles such as corresponding angles, alternate interior angles, and alternate exterior angles. The key characteristic of a transversal is its intersection with multiple lines, which is what allows for the study of these angle relationships.

Answer:

A line that intersects two or more lines.