Question

Julia used 1 foot square stone tiles to make a patio. She laid the tiles in a square, 7 tiles wide by 7 tiles long. What is the are of Julia's new patio

Answer 1

49 ft2

Explanation:

Answer 2

Answer:
`49\ ft^2`

Explanation:

The formula that is used to calculate the area of a square is this one:

`A=s^2`

Where "s" is the side lenght of the square

You know that Julia used 1 foot square stone tiles, then each side lenght of the this tiles is:

`s_(tile)=√(1\ ft^2)\\\\s_(tile)=1\ ft`

Since Julia laid 7 tiles wide by 7 tiles long, the side lenght of the new patio is:

`s_(patio)=7(1\ ft)\\\\s_(patio)=7\ ft`

Therefore its area is:

`A_(patio)=(7\ ft)^2\\\\A_(patio)=49\ ft^2`