(a) From the given figure, the side of one slab is m Therefore, the side of square = (3 × ) m = m

Now,
We know that the perimeter of a square = 4 × Side

= 4 × = 6 m

(b) We know that,

Perimeter = Sum of all sides Therefore Perimeter = 0.5 + 1 + 1 + 0.5 + 1 + 1 + 0.5 + 1 + 1 + 0.5 + 1 + 1

= 10 m

(c) The arrangement which is in the shape of cross has a greater perimeter (i.e. 10 m)

(d) If we put all 9 slabs in a line then, the perimeter will be 10 m, as shown below. Thus, from the given arrangements, arrangements with perimeters greater than 10 m cannot be determined.

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