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Published byTabitha Erin Booth Modified over 9 years ago
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Introduction to Geometry: Points, Lines, and Planes
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Basic Geometric Figures
Point: Location in space represented by a dot and a capital letter. Points have no size, only position. Example:
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Basic Geometric Figures
Line: Connected series of points that extends in both directions without end (represented by arrows). Lines can be named by any two points on the line, or by one lowercase letter.
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Basic Geometric Figures
Plane: Infinite set of points forming a flat surface extending in all directions, represented by a four-sided figure. Example:
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Basic Geometric Figures
Segment: Part of a line bounded by two endpoints.
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Basic Geometric Figures
Ray: Part of a line that starts at a certain (end)point and continues forever in one direction.
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Naming Geometric Figures
Intersection: The point shared by two crossing figures.
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Naming Geometric Figures
Parallel: Two lines in the same plane that never intersect. Represented by symbol “||” (line 1 || line2)
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Naming Geometric Figures
Skew: Two or more lines that do not lie in the same plane. They are not parallel and do not intersect.
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Real Life Example FedEx E Find four segments that intersect AC.
Find three segments || to AC. Find four segments skew to AC. A F B FedEx G C H D
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