How to connect 9 dots with 4 straight lines puzzle

Nine dots puzzle

Before answering the way to connect nine dots with 4 straight lines puzzle.

Let's how the real story of this amazing puzzle.

Story : 

 Nine dots puzzle  was first seen in 1914 Sam Lyod's cyclopedia of puzzles where the title was egg puzzle.

It was created to insist people to think outside the box.

T I CK         : T I C K.         : T I C K

still you didn't get any answer for the nine dots

You will not believe that it got 3 answers.

Nine dots puzzle solution

Hint: The question is looking for straight lines, which can be extended unlike line segment.

Sol 1:

Well I'm damn sure everyone is satisfied  with the above sol.

But this nine dots puzzle says think outside the

box so it got two more solutions..

Sol 2:

Well if you observe the puzzle above there are 9 discs not dots because dots have 0 area .

 This one is done with 3 straight lines.

Sol 3:

If instead of thinking about 2D why not take this problem to 3D level then it will require only 1 straight line to connect the dots.

      Step 1: Draw nine dots on a paper.

                 

        

      Step 2: Roll the paper ..

      Step 3:  Draw a line to connect the 9                       dots.

              

So, ironically the puzzle connect nine dots with 4 straight lines is  not about thinking outside the box  ,it says you to think there is no box.

Source: Wikipedia