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2-5 Postulates and Paragraph Proofs

# 2-5 Postulates and Paragraph Proofs - line containing those...

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Postulates and Paragraph Proofs Section 2-5

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postulate or axiom – a statement that describes a fundamental relationship between the basic terms of geometry. Postulates are accepted as true. proof – a logical argument in which each statement you make is supported by a statement that is accepted as true. theorem – a statement or conjecture that has shown to be true.
Postulates 2.3 A line contains at least 2 points. 2.4 A plane contains at least 3 points not on the same line. 2.5 If 2 points lie in a plane, then the entire

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Unformatted text preview: line containing those points lies in that plane. 2.6 If 2 lines intersect, then their intersection is exactly one point. 2.7 If 2 planes intersect, then their intersection is a line. Midpoint Theorem (2.8) If M is the midpoint of , then AB AM MB 2245 A M B 5 Parts of Good Proof State theorem or conjecture to be proved. List the given information. Draw a diagram if possible. State what is to be proved. Develop a system of deductive reasoning....
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