A rectangular floor measures 546cm by 714cm. You have a lot of square tiles, each measuring 42cm by 42cm. How many of these tiles will you need to tile the floor?

Answer 1

546*714 /(42*42) = 221
but, is that exact?

546 / 42 = 13
714 / 42 = 17
yes, tiles do not have to be cut.

Answer 2

You will need 221 tiles.

546 x 714 = 389,844cm

42 x 42 = 1,764cm

389,844 / 1,764 = 221 cm

Double-check:

1,764 x 221 = 389,844

So yes, you will need 221 tiles to fill 389,844cm in a rectangular area. I hope this helps! :)