Polygons can be grouped based the number of sides they have. Excellent showing from the quadrilaterals this year, they’re all the four-sided shapes with internal angles that total 360 degrees.

Learn more about how angles in an 𝒏-sided polygon add to 180° × (𝒏 – 2) with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Learn about and revise angles, lines and multi-sided shapes and their properties with this BBC Bitesize GCSE Maths Edexcel study guide.

At Long Last, Mathematicians Have Found a Shape With a Pattern That Never Repeats Experts have searched for decades for a polygon that only makes non-repeating patterns.

Learn about and revise angles, lines and multi-sided shapes and their properties with GCSE Bitesize AQA Maths.

You could be raking in millions if you only could come up with an idea as stupidly brilliant as the double-sided condiment bottle. Millions! [Yanko via CrunchGear] ...

Details: Brita hard-sided water filter bottle for kids. Each bottle bears a Brita logo and features the image of a popular children’s cartoon character.

But what’s widely considered his first important discovery is his construction of a 17-sided polygon called a heptadecagon, using only a ruler and a compass.

At least enough to allow for a fully three-dimensional infatuation with 6966 Shepherd Canyon Road in Oakland, a three-bed, two-bath, 2,100-square-foot hillside home noted for the 14-sided shape of ...

Learn about and revise angles, lines and multi-sided shapes and their properties with this BBC Bitesize GCSE Maths Edexcel study guide.