Question

Tiles of a floor measure 240 cm by 300 cm. What is the side length of the largest square he can use?

Answer 1

gcf(240, 300)

Answer 2

I would use 240 times 300 to get the area then find sqrt I am thinking the tiles are rectangular but would like to use squares = 268 cm

Answer 3

in this case, you need the greatest common factor
240 must divide the side length of the square s so that the floor is covered by a whole number of tiles (instead of say quarter tiles)
similarly, 300 also must divide the side length