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Q. Connect the 9 dots using 4 straight lines without taking off the pen from the paper.

• 123
  456
  789
  
  ....123..X
  ....456
  ....789
  ....Y
  
  Join points 123 and extend up to X.
  Join X68 and extend to Y below 7.
  Join 741
  Join 159
  
  all 9 points are joined by 4 straight lines.
• 12 years agoHelpfull: Yes(68) No(6)
• first line 1 4 7 joining dots, extends same line some more down and combining
  second line 8 6 joining, extends same line some more and combining third line 3 2 1 and after combining fourth line 1 5 9
• 6 years agoHelpfull: Yes(0) No(0)