The twelve sides of the new £1 coin make it trickier than other coins.
So easy to describe, yet so hard to prove.
Clever geometry produces materials that shrink when heated.
This surprising result about 3D shapes tells us something deep about the nature of space.
What's the best spot to aim a penalty at?
The 19th century experienced a geometrical revolution. Find out how the new geometries that were discovered shaped philosophy, science, culture and art.
This article explores how Euclid's ancient geometry interacts with all aspects of human thought and life.
We celebrate the most famous of mathematical constants with a circle puzzle.
The impossible becomes possible when you move into the third dimension.
A quick look at an ancient problem.