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19 Cards in this Set
- Front
- Back
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reasoning based on patterns
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inductive reasoning
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conclusion using inductive reasoning
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conjecture
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an example for which the conjecture is incorrect
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counterexample
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an "accepted" statement of fact
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postulate
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3 undefined words?
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point, line, plane
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a location in space; capital letter and a dot
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point
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series of points that extends in 2 opposite directions: 2 capital letters and <--> above them
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line
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flat surface, contains many lines, extends in all directions
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plane
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on the same line
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collinear
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in the same plane
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coplanar
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Postulate 1
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2 points determine a line
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Postulate 2
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2 lines intersect at a point
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Postulate 3
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2 planes intersect in a line
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Postulate 4
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3 points determine a plane
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portion of a line including endpoints
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segment
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portion of a line that has one endpoint and direction
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ray
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-form a line
-same endpoint -2 capital letters with --> above them |
opposite rays
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-never intersecting
-can apply to lines- same plane- or planes- layers/stacks |
parallel
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2 lines that do not intersect
are not coplanar |
skew
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