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Geometry Words
Words that are in geometry
10
Mathematics
9th Grade
02/06/2011

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Term
Point
Definition
Has no dimension. Is a specific location. Named with a capital letter
Term
Line
Definition
A set of points extending in one direction. Named either using a lowercase letter or two points
Term
Plane
Definition
Has two dimensions. Extends forever in every direction
Term
Line segment
Definition
Similar to a line but with two end points
Term
Ray
Definition
Like a line, but one end extends forever in one direction.
Term
Angle
Definition
Formed between two rays.
Term
Coplanar Lines
Definition
Lines that are on the same plane
Term
Collinear
Definition
Points that are on the same line.
Term
What do lines that are parallel have in common
Definition
They have the same slope
Term
What do perpendicular lines have in common?
Definition
They have negative reciprocal slopes.
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