plane geometry

noun Mathematics.
the geometry of figures whose parts all lie in one plane.

Origin:
1740–50

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To plane geometry
Collins
World English Dictionary
plane geometry
 
n
the study of the properties of and relationships between plane curves, figures, etc

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
plane geometry  
The mathematical study of geometric figures whose parts lie in the same plane, such as polygons, circles, and lines.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
American Heritage
Cultural Dictionary

plane geometry definition


The study of two-dimensional figures (figures that are confined to a plane).

Note: Plane geometry is one of the oldest branches of mathematics.
Note: The Greek mathematician Euclid was the first to study plane geometry carefully. His book Elements was the standard plane geometry textbook for centuries.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Example sentences
The shortest distance is a geodesic that corresponds to a straight line when
  projected to a plane geometry.
Must have completed one year of algebra and one year of plane geometry and must
  produce transcript.
The concept learning tasks used consisted of the learning of a series of plane
  geometry concepts.
Extensive knowledge of mathematics such as plane geometry and algebra.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature