IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The four pieces of this model may be ...

If you take a moment to look around, you will find that our environment is a montage of geometric shapes. They are the building blocks of the world around us and are more important than we realize as ...

The brain teaser features an equilateral triangle atop a right-angled triangle. Using this information, can you find the value of x? Many people love solving puzzles that put their mathematical skills ...

A triangle is a polygon. It is a closed 3-sided shape made up of straight lines. The ‘tri-’ part of the word triangle means three. A triangle has 3 sides and 3 angles. Interior angles are the angles ...

Have you ever wondered why the cover of a manhole is nearly always round? Why isn’t it oval or square? Reuleaux curve based on an equilateral triangle. Reuleaux curves based on the pentagon (top) and ...