If the are 6 square's metres.how many 550 mm x 550 mm doe's siyabonga need to tile the bathroom?

To calculate the number of tiles needed, we first need to convert the area of the bathroom from square meters to square millimeters.

1 square meter is equal to 1,000,000 square millimeters.

So, 6 square meters is equal to 6,000,000 square millimeters.

Next, we need to calculate the area of each tile:

550 mm x 550 mm = 302,500 square millimeters

Now, we divide the total area of the bathroom by the area of each tile to find out how many tiles are needed:

6,000,000 square millimeters / 302,500 square millimeters = 19.83

Since you cannot have a fraction of a tile, Siyabonga will need to purchase 20 tiles to tile the bathroom.

Convert square meters to square millimeters:

1 square meter = 1,000,000 square millimeters
6 square meters = 6,000,000 square millimeters

Convert tile dimensions to square millimeters:

550 mm x 550 mm = 302,500 square millimeters per tile

Calculate the number of tiles needed:

6,000,000 square millimeters / 302,500 square millimeters per tile = 19.83 tiles

Round up to the nearest whole number:

Siyabonga needs 20 tiles to tile the bathroom.