Geometry

The postulate illustrated here is A."If two lines intersect, then their intersection is exactly one point."

In the "If" part of the diagram, two lines are shown in a way that indicates they will cross each other. The "then" part shows the two lines intersecting at a single, distinct point, which demonstrates this postulate.

B.The statement "If two points lie in the plane, then the line containing them lies in the plane" is about t...