Saturday, June 13, 2009
Hi, im back to post more fun facts about MATHS =)
=3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 59230 78164 06286 20899 86280 34825 34211 70679 82148 08651 32823 ... - There are shapes of constant width other than the circle. One can even drill square holes
- In a group of 23 people, at least two have the same birthday with the probability greater than 1/2
- Everything you can do with a ruler and a compass you can do with the compass alone.
- Among all shapes with the same perimeter a has the largest area.
- The next sentence is true but you must not believe it.
- The previous sentence was false
- [ 12+3+4+5+67+8+9=100] There exists at least one other representation of 100 with 9 digits in the right order and math operations in between
- One can cut a pie into 8 pieces with three movements.
- A clock never showing right time might be preferable to the one showing right time twice a day
- Among all shapes with the same area circle has the shortest perimeter.
A. Bogomolny, Did you know that... Random interesting math facts from Interactive Mathematics Miscellany and Puzzles
http://www.cut-the-knot.org/do_you_know/index.shtml, Accessed 14 June 2009
http://www.cut-the-knot.org/do_you_know/index.shtml, Accessed 14 June 2009
Xiao Yuting
Wan Tian Chong
