Mary wants to decorate her Christmas tree. She wants to place the tree on a wooden box covered with coloured paper with picture of Santa Claus on it (see Figure) She must know the exact quantity of paper to buy for this purpose. If the box has length, breadth and height as and respectively how many square sheets of paper of side would she require?
Hameed has built a cubical water tank with lid for his house, with each outer edge m long. He gets the outer surface of the tank excluding the base, covered with square tiles of side . Find how much he would spend for the tiles, if the cost of the tiles is per dozen.