1.1 Vocabulary (Honors)

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Geometry & Trigonometry

Last updated 2:47 PM on 9/8/22
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18 Terms

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Point
a location that has no size
a location that has no size
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Line
An infinite number of points on a straight path that extends in two opposite directions with no end and has no thickness.
An infinite number of points on a straight path that extends in two opposite directions with no end and has no thickness.
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Line Segment
A portion of a line with two endpoints.
A portion of a line with two endpoints.
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Ray
A part of a line that has one endpoint and extends indefinitely in one direction.
A part of a line that has one endpoint and extends indefinitely in one direction.
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Angle
Formed by two rays with the same endpoint. Each ray is a side of the angle and the common endpoint is the vertex of the angle.
Formed by two rays with the same endpoint. Each ray is a side of the angle and the common endpoint is the vertex of the angle.
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Collinear Points
Points that lie on the same line.
Points that lie on the same line.
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Line BC (Visual/Notation)
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Ray FG (Visual/Notation)
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Segment DE (Visual/Notation)
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Segment GH (Notation)
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Ray JK (Notation)
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Angle ABC (Visual/Notation)
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Congruent Segments
the segments are of equal length
the segments are of equal length
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Congruent Angles
angle with equal angle measure
angle with equal angle measure
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Segment Addition Postulate
States if point B is between points A and C on the same line, then AB + BC = AC
States if point B is between points A and C on the same line, then AB + BC = AC
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Angle Addition Postulate
If point D is in the interior of
If point D is in the interior of <ABC, then the m<ABD + m<DBC = m<ABC
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Plane
A flat surface that extends without without end that has no thickness
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Opposite Rays
two rays that have a common endpoint and form a line
two rays that have a common endpoint and form a line