A man has built a cubical water tank in his house. All sides of it are equal to 1.8m. All sides except the base are to be covered by tiles having equal sides of 30cm. How much money will he spend on tiles if cost of tiles is ₹400/dozen?

The formulas for cube and cuboid shapes are based on their surface areas, lateral surface areas and volume.

Cube	Cuboid
Total Surface Area = 6(side)2	Total Surface area = 2 (length × breadth + breadth × height + length × height)
Lateral Surface Area = 4 (Side)2	Lateral Surface area = 2 height(length + breadth)
Volume of cube = (Side)3	Volume of the cuboid = (length × breadth × height)
Diagonal of a cube = √3(side)	Diagonal of the cuboid =√( length2 + breadth2 +height2)
Perimeter of cube = 12 × side	Perimeter of cuboid = 4 (length + breadth + height)