Puzzle | Form Three Equilateral Triangles

Suppose you have a regular hexagon made up of matchsticks with three diagonals in it. The task is to convert the given hexagon into three equilateral triangles by moving only 4 matchsticks.

       (Each matchstick is numbered as shown below)       

Solution:

Move 2, 4, 5, 6 numbered matches to get exactly three equilateral triangles as shown below.

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