# Figures

We divide all possible math figures into two collections.

**The first collection** contains

straight lines, rays and line segments, regular *n*-gons with *n* > 2,

circles, parabolas, orthogonal hyperbolas,

tetrahedrons, cubes and spheres.

**The second collection** contains non regular *n*-gons with *n* > 2, as

(random) triangles, rectangles, lozenges and further

ellipses, spatial ellipsoids, blocks, prisms, pyramids, cones and

many other figures.

**Can you discover** according to what property the figures have been divided?

The solution: scroll down.

**The first set contains ** for example
all the straight lines are uniform,

all circles being uniform, all spheres as well.

All regular 6-angles are uniform, . . .

In general the second collection fails the uniformity property.