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malory12
if two points intersect,then their intersection is a line.A line contains at least twon points. if two lines intersect then exactly one plain contains both lines.
dalesydney113
If two points lie in a plane, then the line joining them lies in that plane (Postulate 5). If two planes intersect, then their intersection is a line (Postulate 6). A line contains at least two points (Postulate 1). If two lines intersect, then exactly one plane contains both lines (Theorem 3)

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