Question

The length of a square room is 400cm . How many square tites of 10cm in the length are required to cover the floor of the room?

Answer 1

Answer:

4 tiles

Step-by-step explanation:

area of square tiles =10^2=100

therefore no of tiles =400/100

=4

HOPE IT HELPED

Answer 2

Answer:

Step-by-step explanation:

let the side of the square be x

 therefore x=400cm

area of the room= (400)^2

                         = 160000 cm^2

area of the tile = (10)^2

                       =100

the number of tiles required is

                        = area of the room/area of 1 tile

                        = 160000/100

                        =1600 tiles are required

hope this was usefull....