Find the minimum number of straight lines required to make the given figure.

  • Option 1)

    17                    

  • Option 2)

     18  

  • Option 3)

    21

  • Option 4)

    20

  • Option 5)

    19

Answers (1)

Horizontal lines are IK, AB, HG and DC i.e. 4 in number.

Vertical lines are AD, EH, JM, FG and BC i.e. 5 in number.

Slanting lines are IE, JE, JF, KF, DE, DH, FC and GC i.e. 8 in number.

So, total lines = 4 + 5 + 8 = 17

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