Two regular Hexagons of perimeter 30cm each are joined as shown in Fig. 6.7. The perimeter of the new figure is


Perimeter for any figure is the sum of all sides.


So the perimeter of hexagon = 30 cm.


So each side of hexagon = 30 / 6


= 5 cm


When two hexagons are joined, each side of each hexagon overlaps.



So total number of sides of the new figure is 10.


So the new perimeter = 10 × 5


= 50 cm


So the correct answer is D [50 cm].

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