How to calculate number of Tiles in Floor area & Wall area?

Tiles:-
              A Tiles is a thin object usually square or rectangular in shape. Tiles is a manufactured piece of hard - wearing material such as ceramic, stone metal,baked clay or even glass, Generally used for covering roofs , floors , walls or other objects. Tiles is manufactured different size and shape according construction purpose.

> Here we calculate number of tiles in floor area and wall area

Wall Area:-
                   

Here we have a diagram and the following data given

• size of bathroom = 7*6 feet

• Height of bathroom= 9 feet ( Assume)

• Size of Tiles.            = 30*30 cm

Solution:-

                  Formula = wall area/ Area of tiles

So according to formula first we calculate area of wall = Length*Height

Total length of walls = (7*2)+(6*2)

                                   = 26 feet

Wall area = 26*9

                 = 234 square feet

Area of the door = 3*7

                            = 21 square feet

Total wall area = wall area - door area

                          = 234-22. => 213 square feet

Area of the one tile = 30*60. => 1800 cm^2

Change the unit cm^2 to square feet = 1800/1000. 

                                                                  = 1.8 square feet

Now according to formula number of tiles are =  213/1.8. => 118 tiles

The number of tiles required this bathroom = 118 No.

Floor Area:-

                        Assume we have a floor size is = 11*10 => 110 square feet

                         Size of floor tile.                         = 60*60 cm 

 Solution :- 

                    Formula = Floor area/ Area of 1 tile

Area of 1 tile = 60" 60 cm

                        = 3600 cm^2

Change the unit cm^2 to square feet = 3600/1000

                                                                 = 3.6 square feet

Now according to formula = 110/3.6

                                                = 30.5 tiles or 31 tiles

Number of tiles required = 31 No.