Q. 174.0( 130 Votes )

Avneet buys 9 squ

Answer :

(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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