If two points of a ray lie in a plane, then all of the ray lies in the plane.

False

Step-by-step explanation:

When two points of a ray lie in a plane, we cannot say with conviction that the entire ray lies in the plane because it depends on other things. That is, when point A and plane B lie in plane, this does not imply that the whole radius lies in the plane, it is only possible to know whether or not the ray lies in the plane with an analysis of the ray itself.

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