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Inductive Reasoning

Based on patterns you observe.

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Conjecture

A conclusion you reach using inductive reasoning.

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Counterexample

An example which the conjecture is INcorrect.

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Space

Defined set of all points.

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Collinear Points

Points that lie on the same line.

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Segment

Part of a line consisting of two endpoints and all points between them.

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Ray

Part of line consisting one endpoint and all points of line on one side of endpoint.

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Postulate or Axiom

An accepted statement or fact.

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Plane

Flat surface with no thickness.

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Parallel Planes

Planes DO NOT intersect.

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Parallel Lines

Coplanar lines DO NOT intersect.

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Opposite Rays

Two collinear rays with the same endpoint.

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Line

A series of points that extends in two opposite directions without end.

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Coplanar

Points and lines in the same plane.

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Skew Lines

Noncoplanar, not parallel and DO NOT intersect.

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Adjacent Angles

2 coplanar angles /w/ common side, vertex, + no common interior points.

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Vertical Angles

2 angles whose sides re opposite rays.

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Supplementary Angles

2 angles measures sun to 180.

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Midpoint

A point that divides the segment into 2 congruent segments.

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Congruent Segment

2 segments /w/ the same length.

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Congruent Angles

Angles /w/ same measure.

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Complementary Angles

2 angles measures sum to 90.

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Angle

Formed by 2 rays /w/ same endpoint.

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