7Dec/070
Diabolical geometry problem
While surfing the web I discovered this: World's Hardest Easy Geometry Problem. There's actually two geometry problems on the page. Apparently these are classic problems that have tortured students for a long time. I spent a little bit of time working on the first, and even looking at the two hints, and didn't solve it.
Give it a try.
Buy a book, support this site
Recent Posts
- Plotting “traveling salesman problem” routes on an iPhone
- From “God Plays Dice,” an interesting geometry problem
- Review: Beautiful Mathematics
- Review: Magical Mathematics
- Google adds graphing calculator to its search results
- New math book makes its debut on Fibonacci Day
- More fun with the number 11
- Happy 11/11/11 Day!
Recent Comments
- george stewart on Math magic with the number 9
- Aftaul Goni on Impress your friends with mental Math tricks
- Elsidhd on Impress your friends with mental Math tricks
- smpbanu on Impress your friends with mental Math tricks
- RUSHI 9724996953 on Impress your friends with mental Math tricks
Pages
Archives
- February 2012
- December 2011
- November 2011
- October 2011
- September 2011
- August 2011
- July 2011
- June 2011
- May 2011
- April 2011
- March 2011
- February 2011
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
- July 2010
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- October 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- February 2009
- January 2009
- December 2008
- November 2008
- October 2008
- September 2008
- August 2008
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
- December 2007
- November 2007
- October 2007
Blogroll
- 360
- 3σ → Left
- A Mathematics Study Log with Musings and Views
- BetterExplained
- Casting Out Nines
- Conceptis addict
- Concerns of Young Mathematicians
- Continuities
- Crewton Ramone’s Blog of Math
- Exploring Binary
- f(t)
- FOXMATHS!
- God Plays Dice
- Good Math, Bad Math
- History of Mathematics Blog
- Homeschool Math blog
- How to Do Everything Statistics
- jd2718
- Let’s play math!
- Math and Multimedia
- Math Blog
- Math Concepts Explained
- math for kids shop
- Math in Singapore 2007
- Math Intervention Blog
- Math Mama Writes
- Math Playground
- Math Teacher Mambo
- Math-Frolic!
- Mathchat
- Mathematics Academy
- Mathematics Education Research Blog
- Mathematics Under the Microscope
- Mathematics Weblog
- MathNotations
- meeyauw
- Mr. Higgins’ Blog
- Playing With Mathematica
- Polymathematics
- Ramblings of a Math Mom
- Random walks: Mr. Chase blogs about Math
- Science and Math Defeated
- Spirit Of Mathematics
- squareCircleZ
- Sylvan Dell Publishing
- Tanya Khovanova’s Math Blog
- The cheap researcher
- The Mad Hatter’s Mad MathBlog
- The Math Less Traveled
- The Trans-Siberian Handbook
- Tyler and Foxy’s Scientific and Mathematical Adventure Land!
- Undernet Math’s Weblog
- Vlorbik on Math Ed
- Walking Randomly
- Watch Math Blog
- White Group Mathematics
- world’s famous mathematicians
- ZeroDivides