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

Question

Philoid · Accepted Answer

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].