Boing Boing on MSNOpinion
Two twisty doughnut shapes solve a 150-year-old geometry puzzle
In 1867, French mathematician Pierre Ossian Bonnet proved something that seemed like common sense: if you know how far apart ...
Revise the different types of angles and rules for calculating angles. This guide includes interactive activities and a quiz. NEW: Angles in parallel lines Revise alternate, correspondent or ...
Circles, triangles and squares. One of the first things we learn as children are basic geometric shapes. And they stay with us throughout our lives. Maybe it’s that sense of familiarity that makes ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results