plane geometry

American  

noun

Mathematics.

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

---

plane geometry British  

noun

1. the study of the properties of and relationships between plane curves, figures, etc

---

plane geometry Scientific  

1. The mathematical study of geometric figures whose parts lie in the same plane, such as polygons, circles, and lines.

---

plane geometry Cultural  

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

---

Discover More

Plane geometry is one of the oldest branches of mathematics.

The Greek mathematician Euclid was the first to study plane geometry carefully. His book Elements was the standard plane geometry textbook for centuries.

Etymology

Origin of plane geometry

First recorded in 1740–50

Example Sentences

But their boxes, X-shapes and intersecting lines are as eternal as plane geometry.

From Washington Post • Jul. 2, 2015

To me," he says, "chess is a game of training in orientation for problem solving, not only in strategy and tactics and plane geometry, but in learning to use the pieces as a cooperative team.

From Time Magazine Archive

Okimoto has outmaneuvered Mondrian: his colorful plane geometry is also mobile.

From Time Magazine Archive

Not only did Dr. Fawcett's pupils rate high er than other high-school youngsters in tests on reasoning ability, but they got the best marks in the State in plane geometry.

From Time Magazine Archive

“Yes. I just have to work the same sort of plane geometry to find another point not labeled on our map.”

From "The Smartest Kid in the Universe" by Chris Grabenstein