Postulates Geometry 2.4.

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Presentation transcript:

Postulates Geometry 2.4

Postulates 1 to 4 1: Ruler Postulate (measure segments) 2: Segment Addition Postulate (add segments) 3: Protractor Postulate (measure angles) 4: Angle Addition Postulate (add angles)

Postulate 5 Any two points can be joined by exactly one line. then If

Postulate 6 A line contains at least two points. If then

Postulate 7 Two lines that intersect do so at exactly one point. If then

Postulate 8 Any three non-collinear points lie in exactly one plane. then If

Postulate 9 A plane contains at least three non-collinear points. If then

Postulate 10 Given two points in a plane, the line joining them is on the same plane. If then

Postulate 11 Two planes that intersect do so at exactly one line. then If