Intro to Geometry (points, lines, dimensions, etc.)

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Geometry & Trigonometry

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35 Terms

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Coplanar
________- Existing in one plane (usually refers to points or lines)
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Dimension
________ is a characteristic of all geometric regions, objects, and spaces.
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Noncoplanar
________- Not existing in one plane (usually refers to points or lines)
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straight formation
Line- A collection of points arrayed in a(n) ________ without limit.
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boundless surface
A plane is a(n) ________ in space.
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Height
________ is a measurement of length perpendicular to length and width.
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Collinear
________- Lying in one line (usually refers to a set of points)
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Noncollinear
________- Not lying in one line (usually refers to a set of points)
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P
A plane is denoted by writing "plane ________, "or just writing "________.
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ray
A(n) ________ is a cross between a line and a line segment.
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Congruent
________- Of exactly the same size and shape; in other words, of exactly the same dimensions.
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Segment
________- A portion of a line with two endpoints and, thus, finite length.
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Collinearity
________ is a relative term.
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Geometry
________ is the study of shapes.
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new dimension
Space is three- dimensional; that is, it has length, width, and a(n) ________, height.
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infinite length
Whereas a line has ________, a line segment has a finite length.
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Dimension
________- The number of lines required to span a region in space.
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straight formation
A line is the infinite set of all points arrayed in a(n) ________.
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Collinear 
Lying in one line (usually refers to a set of points)
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Congruent
Of exactly the same size and shape; in other words, of exactly the same dimensions
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Coplanar
Existing in one plane (usually refers to points or lines)
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Dimension
The number of lines required to span a region in space
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Line
A collection of points arrayed in a straight formation without limit
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Noncollinear 
Not lying in one line (usually refers to a set of points)
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Noncoplanar
Not existing in one plane (usually refers to points or lines)
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Perpendicular
At a 90 degree angle (something is perpendicular relative to something else)
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Plane
A flat, boundless surface in space
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Point
A specific location in space
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Ray
A portion of a line with a fixed endpoint on one end that extends without bound in the other direction
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Segment
A portion of a line with two endpoints and, thus, finite length
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Space
The collection of all points
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To put it another way, there is only one way that you can move along a line
lengthwise
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Therefore a line is one
dimensional
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It requires two lines to span a plane, so therefore a plane is two
dimensional
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Imagine a box
It has length, width, and height