Question

Jia is tiling a floor. The floor is asquare with side lenghth 12 feet. Jia wants the tiles to be squares with side lengh 2 feet . How many tiles does jia need to cover the entire floor? Note that the area of a square is s2, where s is the side length.explain.
Is it substract or divide?
Thankyou

Answer 1

1. Find the area of floor, using formula

$A_{square}=s^2,$ where s is square side length.

Thus,

$A_{floor}=12^2=144\ sq. ft.$

2. Find the area of each square tile with side length 2 ft:

$A_{tile}=2^2=4\ sq. ft.$

3. Now 144:4=36 tiles are needed to cover the entire floor.

Answer: 36 tiles