Geometry Ch.1 Review

A point is ___

• a straight set of points extending infinitely in one dimension with no width or thickness

• a dot or location with no length, width, or thickness

• a flat surface made of points extending infinitely in two dimensions with no thickness

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A line is ___

• a straight set of points extending infinitely in one dimension with no width or thickness

• a dot or location with no length, width, or thickness

• a flat surface made of points extending infinitely in two dimensions with no thickness

A plane is ___

• a straight set of points extending infinitely in one dimension with no width or thickness

• a dot or location with no length, width, or thickness

• a flat surface made of points extending infinitely in two dimensions with no thickness

Collinear points are ___

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  Points that do not lie on the same line. 

  
  

• 
  Points that lie on the same line

  
  

• Points that do not lie on the same plane

  
  

• Lines that are not coplanar, so therefore they do not intersect as well

  
  

Noncollinear points are ___

• 
  Points that do not lie on the same line. 

  
  

• 
  Points that lie on the same line

  
  

• Points that do not lie on the same plane

  
  

• Lines that are not coplanar, so therefore they do not intersect as well

  
  

Noncoplanar points are ___

• 
  Points that do not lie on the same line. 

  
  

• 
  Points that lie on the same line

  
  

• Points that do not lie on the same plane

  
  

• Lines that are not coplanar, so therefore they do not intersect as well

  
  

Skew Lines are ___

• 
  Points that do not lie on the same line. 

  
  

• 
  Points that lie on the same line

  
  

• Points that do not lie on the same plane

  
  

• Lines that are not coplanar, so therefore they do not intersect as well

  
  

Concurrent Lines are ____

• Coplanar lines that do not intersect

  
  

• Lines that are not coplanar, so therefore they do not intersect as well

  
  

• Planes that do not intersect

  
  

• Lines whose intersection is a single point

  
  

Parallel lines are ____

• Coplanar lines that do not intersect

  
  

• Lines that are not coplanar, so therefore they do not intersect as well

  
  

• Planes that do not intersect

  
  

• Lines whose intersection is a single point

  
  

Parallel planes are ____

• Coplanar lines that do not intersect

  
  

• Lines that are not coplanar, so therefore they do not intersect as well

  
  

• Planes that do not intersect

  
  

• Lines whose intersection is a single point