plane geometry

In plane geometry we study the behavior of points and lines, but these terms are not defined within the subject itself.

An old book that talks about plane geometry and math.

In plane geometry the basic concepts are points and (straight) lines.

It was developed following the development of plane geometry.

The basic elements of Euclidean plane geometry are points and lines.

Similar formulas in plane geometry can be proven with more elementary means.

A number of ancient problems in plane geometry impose this restriction.

I learned a great deal about plane geometry from these exercises with The Bull.

The Pitot theorem of plane geometry is named after him.

Even plane (Euclidean) geometry that is taught in all secondary schools has its limits.