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# geometry 1

TermDefinition
point a location that has no size
line a straight path that extends in opposite directions with no end
plane infinite number of points and lines and a flat surface that extends without end and has no thickness
segment the section of a line that consists of two endpoints and all the rays between them
ray a piece of a line that includes one endpoint and all the points of the line on one side of the endpoint
opposite rays two rays with that share a common endpoint and are on the same line
angle formed by two rays with the same endpoint each ray=one side of the angle; common endpoint=vertex
law of syllogism a law of logic that states that, given two true conditionals with the conclusion of the first being the hypothesis of the second, there exists a third true conditional having the hypothesis of the first and the conclusion of the second
law of detachment a law of logic that states if a conditional statement and its hypothesis are true, then its conclusion is also true
inductive reasoning leads to a conjecture by observing patterns; uses specific examples to make a generalization; does not show that a conjecture is true, so a conjecture could be disproven by a counterexample
conditional an IF-THEN statement that relates a hypothesis to a conclusion
hypothesis the part that follows IF
conclusion the part that follows THEN
converse reverses the hypothesis and the conclusion of a conditional
negation has the opposite meaning of the original statement
inverse obtained by negating both the hypothesis and the conclusion of a conditional
contrapositive obtained by negating and reversing both the hypothesis and the conclusion of a conditional
Created by: YaeckerE25
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