Math
posted by Anonymous .
Which tiles can be used to cover a 12 by 12 floor? 9 by 9? Suppose you have 2 by 2, 3 by 3, 4 by 4, and 5x by 5 ft tiles.

Math 
Anonymous
The x isn't supposed to be there.

Math 
Ms. Sue
Only one of those sets would not work. Which one wouldn't work?

Math 
Anonymous
Um I don't really know.

Math 
Ms. Sue
Here are the factors of 12:
1, 2, 3, 4, 6, 12
Factors of 9
1, 3, 9 
Math 
Anonymous
I got the 9x9 but whats the 12x12?

Math 
Ms. Sue
Look at the factors of 12. All but one size of floor tile will cover a 12 by 12 foot floor.

Math 
Math
:L
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