Term

Definition
lines that lie in the same plane and do not intersect; they are always the same distance apart 


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Definition
line segments that cross or meet to form right angles 


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Definition
lines that meet or cross at a common point 


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Definition
part of a line; it has one endpoint and goes on without end in one direction 


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Definition
formed by two rays with a common endpoint 


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Definition
the common endpoint of two rays that form an angle 


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Definition
an angle that forms a square corner 


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Definition
an angle that is greater than a right angle 


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Definition
an angle that is less than a right angle 


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Definition
a flat, closed figure made up of three or more line segments 


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Definition


Term

Definition
a quadrilateral with only one pair of parallel sides 


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Definition


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Definition


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Definition
the point where two sides of a polygon meet 


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Definition
a shape that has length and width 


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Definition
one of the line segments that makes a polygon 


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Definition
a parallelogram with all four sides the same length 


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Definition
a quadrilateral with four sides where the opposite sides are parallel 


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Definition


Term

Definition
triangle with all angles acute 


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Definition
triangle with one right angle 


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Definition
triangle with one obtuse angle 


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Definition
triangle with all sides the same and all angles the same 


Term

Definition
triangle with 2 sides the same and 2 angles the same 


Term

Definition
triangle with no sides the same and no angles the same 

