The side of the room is square – 4m. The floor of the room is tiled with a side of 4m. Find out how many tiles were needed

If the side of the tile is 4 meters, then 1 tile is required.

We take the value of the side of the tile equal to 4 dm.

We find the area of the room.

Since the side is 4 m, and the room is square, the area of the room will be equal to:

4 * 4 = 16 m2

Find the area of one tile.

We translate its dimensions from dm to m.

Since 1 dm – 0.1 m, we get:

4 dm = 4 * 0.1 = 0.4 m.

The area will be:

0.4 * 0.4 = 0.16 m2

Find the number of tiles.

To do this, we divide the area of the room by the area of the tile.

16 / 0.16 = 100 tiles.

Answer: 100 tiles.