| The New Dictionary of Cultural Literacy, Third Edition. 2002. |
| |
| plane geometry |
| |
| |
| The study of two-dimensional figures (figures that are confined to a plane). | 1 |
| ‡ Plane geometry is one of the oldest branches of mathematics. | 2 |
| ‡ The Greek mathematician Euclid was the first to study plane geometry carefully. His book Elements was the standard plane geometry textbook for centuries. | 3 |
| |
| | | The New Dictionary of Cultural Literacy, Third Edition. Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
|
|
