great circles
great circles
that would be a line and lines do not exist in spherical geometry
8
Two.
A monogon (more commonly called the Henagon) is a one-sided polygon. In Euclidean Geometry, (on a flat plane) it is considered a impossible because lines continue on forever. In Spherical Geometry, [on a spherical (circular) plane] a finite monogon can be drawn by placing a placing a single vertex on a circle because circles are basically a polygon with infinite sides.
great circles
great circles
Lines in spherical geometry are very easy to understand. Lines in spherical geometry are straight looking items that can be found by graphing points in a certain pattern.
great
that would be a line and lines do not exist in spherical geometry
Arcs or curves.
yes
8
Two.
In plane geometry, the geometry of a flat surface, parallel lines by definition never meet. However in spherical geometry, the geometry of the surface of a sphere (such as the planet Earth) parallel lines meet at the poles.
segments, lines, and rays.
A monogon (more commonly called the Henagon) is a one-sided polygon. In Euclidean Geometry, (on a flat plane) it is considered a impossible because lines continue on forever. In Spherical Geometry, [on a spherical (circular) plane] a finite monogon can be drawn by placing a placing a single vertex on a circle because circles are basically a polygon with infinite sides.