Avneet buys 9 square paving slabs,each with a side of `1//2`.He lays them in the form of a square.
What is the perimeter of his arrangement?(The paving slabs must meet along complete edges:they cannot be broken.)

Avneet buys 9 square paving slabs,each with a side of 1//2 .He lays them in the form of a square. Shari does not like his arrangement.She gets him to lay them out like a cross.What is the perimeter of her arrangement ?(The paving slabs must meet along complete edges:they cannot be broken.)

Hameed has built a cubical water tank with lid for his house, with each outer edge 1.5 m long. He gets the outer surface of the tank excluding the base, covered with square tiles of side 25 cm (see Fig. 13.5). Find how much he would spend for the tiles, if the cost of the tiles is ₹ 360 per dozen.