Search Geometry Topics and Tools

Focused index for geometry content

4Geometry is a search engine built for people who work with geometric ideas. Whether you need a textbook chapter, a clear proof, a visualization tool, or a specific geometry software package, our search combines multiple indexes and AI systems to deliver focused results. The site also includes tutorials, calculators, and a chat assistant that can explain steps, suggest diagrams, and help check proofs. Part of the 4SEARCH network of topic specific search engines.

Latest Articles


medium.com > math-games > how-would-you-solve-this-japanese-geometry-puzzle-1fb4a6147d6d

How Would You Solve This Japanese Geometry Puzzle?

8+ hour, 2+ min ago   (175+ words) The above figure contains five circles, which are fitted into a square with two semi-circles. So how would you calculate the radius of the red circles? Once again, this is a good moment to pause the article and give the…...


dogonews.com > 2026 > 10 > 6 > giraffes-are-better-at-math-than-you-might-think

Giraffes May Be Better at Math Than You Might Think

1+ day, 6+ hour ago   (307+ words) Alvaro A. - 395 words As the tallest land animals on Earth, giraffes are famous for reaching high up into the trees. Now, it turns out their minds can reach pretty far, too! Researchers from the University of Barcelona have found that these…...


dw.com > en > from-0-to-9-the-mysterious-origins-of-numbers > video-79556280

From 0 to 9 — the mysterious origins of numbers

1+ day, 12+ hour ago   (204+ words) DW.com From 0 to 9 — the mysterious origins of numbers The Western world calls them "Arabic numerals," while in the Arab world, today's European notation is thought of as being Western. What is "Arabic" about the symbols that traveled from India…...


thomas-oppong.medium.com

These Asymmetries Have a Massive Return on Life

1+ day, 19+ hour ago   (298+ words) They make life 10x easier. Thales was mocked for being poor. He is known for being the first western philosopher in 600 BC. But people thought his … These Asymmetries Have a Massive Return on Life They make life 10x easier. Thales was mocked…...


astrobiology.com > 10/05/2026 > chondrule-size-averaging-in-two-and-three-dimensions

Chondrule Size Averaging In Two And Three Dimensions

2+ day, 4+ hour ago   (168+ words) Astrobiology Web [astro-ph.EP] Chondrule sizes are an important discriminant of chondrite groups and chondrule formation theories. Yet most studies report 2D sizes without attempting the somewhat tedious corrections to 3D proposed in the past literature. I show here that 3D size averages…...


redandblack.com > calendar > math-circle > event_b7d18e71-89f3-43cd-9bd3-e2b2acbd6cc0.html

Math Circle

2+ day, 13+ hour ago   (332+ words) Math lover? Maybe just math curious? The UGA Mathematics Department and ACC Library are proud to collaborate on the monthly Athens Area Math Circle. All local teens are invited!This program aims to build foundational understanding of mathematical principles using…...


polygon.com > buffy-season-5-hot-take

www.polygon.com

3+ day, 4+ hour ago   (15+ words) 'Buffy the Vampire Slayer' Would Be Much Better if It Were 2 Seasons Shorter Polygon.com...


johndcook.com > blog > 10/04/2026 > miquels-pentagon-theorem

Miquel’s pentagon theorem

3+ day, 9+ hour ago   (112+ words) An earlier post presented an elegant plane geometry theorem discovered by the 19th century school teacher Auguste Miquel. This post presents his pentagon theorem. Start with a pentagon. It may be irregular, but it needs to be convex. Extend each of…...


johndcook.com > blog > 10/03/2026 > miquels-pivot-theorem

Miquel’s pivot theorem

3+ day, 21+ hour ago   (220+ words) Euclidean geometry dates back at least to Euclid (circa 300 BC), and so you might think it’s been pretty well picked over by now. And yet people still occasionally discover new plane geometry theorems. Some of these new theorems are complicated,…...


openpr.com > news > 4650942 > the-369-rabbit-hole-launches-a-free-website-and-interactive-tools

The 369 Rabbit Hole launches a free website and interactive tools for exploring number patterns in math and history

4+ day, 16+ hour ago   (77+ words) openPR.com The 369 Rabbit Hole launches a free website and interactive tools for exploring number patterns in math and history Press release from: Getnews Permanent link to this press release: You can edit or delete your press release The 369 Rabbit…...