rookie1ja Posted March 30, 2007 Report Share Posted March 30, 2007 Open polygon - Back to the Cool Math Games Connect all 9 dots with 4 straight lines without lifting the pencil off the paper, and without going over the same line twice. This old topic is locked since it was answered many times. You can check solution in the Spoiler below. Pls visit New Puzzles section to see always fresh brain teasers. Open Polygon - solution Link to comment Share on other sites More sharing options...
Guest Posted June 22, 2007 Report Share Posted June 22, 2007 E Link to comment Share on other sites More sharing options...
Guest Posted June 26, 2007 Report Share Posted June 26, 2007 | | / * * * | / * * * | / *__*__ *_ this way Link to comment Share on other sites More sharing options...
Guest Posted June 26, 2007 Report Share Posted June 26, 2007 I apologise if thats not clear ...thts bcoz i dont know how to draw it in this editor... But to describe it in words, draw a line joining the pts at the left side of the array of points and then another one joining the last row......now extend the two lines a little. Now draw another line from here thru the 2nd and sixth point... The last one id drawn as a diagonal to the square formed by the array of dots... Link to comment Share on other sites More sharing options...
Guest Posted November 11, 2007 Report Share Posted November 11, 2007 You didn't meet the requirements of the solution with an open polygon. There is a closed polygon and a line, but that doesn't make an open one. Link to comment Share on other sites More sharing options...
Guest Posted November 12, 2007 Report Share Posted November 12, 2007 x - l Link to comment Share on other sites More sharing options...
Guest Posted November 18, 2007 Report Share Posted November 18, 2007 i did it this way 4....5 -*---*..* 2 ..... /| .*...*...* ../....| .*...*...* 1.......| 3 1-2-3-4-5 just dot(.)= space( ) Link to comment Share on other sites More sharing options...
Guest Posted January 27, 2008 Report Share Posted January 27, 2008 how about three vertical lines and one horizontal Link to comment Share on other sites More sharing options...
Guest Posted January 29, 2008 Report Share Posted January 29, 2008 (edited) 123 456 789 6-2-4-7-9 edit: bah, jumped ahead of myself. didn't use all 9 Edited January 29, 2008 by beck Link to comment Share on other sites More sharing options...
Guest Posted February 3, 2008 Report Share Posted February 3, 2008 1000020000300000 00 0 0 0 0 0 0 0 0 0 0 4 5 6 0 0 0 0 0 0 0 0 0 0 0 7 8 9 0 0 0 0 0 0 0 0 0 sorry about the diagram,did the best I could! anyway start at 1 draw a line thru 2 and 3 going past 3 far enough to draw a 45 degree line thru 6 and eight extending past 8 to line up 7,4 and 1.draw a line thru 7,4,and 1. now 45 deg. thru 1,5 and 9. Had to do this for 5th grade math extra credit way back when,only you couldn't lift pencil from paper. Link to comment Share on other sites More sharing options...
Guest Posted February 3, 2008 Report Share Posted February 3, 2008 wow that's not the way it looked in the email window....sorry Link to comment Share on other sites More sharing options...
rookie1ja Posted February 3, 2008 Author Report Share Posted February 3, 2008 wow that's not the way it looked in the email window....sorry if you want to keep the spaces then use the code tags 1000020000300000 00 0 0 0 0 0 0 0 0 0 0 4 5 6 0 0 0 0 0 0 0 0 0 0 0 7 8 9 0 0 0 0 0 0 0 0 0[/code] Link to comment Share on other sites More sharing options...
Guest Posted February 4, 2008 Report Share Posted February 4, 2008 That was easy as! Link to comment Share on other sites More sharing options...
Guest Posted March 29, 2008 Report Share Posted March 29, 2008 this is a fun puzzle but the version i did 2 or 3 years ago was that i couldnt lift the pencil from the paper and i had to connect all the dots with 4 lines Link to comment Share on other sites More sharing options...
Guest Posted October 17, 2009 Report Share Posted October 17, 2009 there is a possibility to connect them by 3 lines if those dots have any size different from infinitely small and if it is possible to draw as long lines as we want. Link to comment Share on other sites More sharing options...
Guest Posted October 30, 2009 Report Share Posted October 30, 2009 The origin of the expression "to think outside the box" Link to comment Share on other sites More sharing options...
Guest Posted March 28, 2010 Report Share Posted March 28, 2010 0-0-0 | 0-0-0 | 0-0-0 Link to comment Share on other sites More sharing options...
Guest Posted April 21, 2010 Report Share Posted April 21, 2010 Open polygon - Back to the Logic Puzzles Connect all 9 dots with 4 straight lines without lifting the pencil off the paper, and without going over the same line twice. Open Polygon - solution Wasnt one of your requirements not to go over the same line twice? Even though thats the solution ive seen and have, line 4 croses over line 3. Link to comment Share on other sites More sharing options...
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