Question

A square room has walls that are each 6 feet long. How much carpet would be needed to cover the floor of this room.

Answer 1

36 feet of carpet cause its a square so 6x6 is 36

Answer 2

It's asking for the area of the room. To find the area of a square is the number squared. 
So the answer would be 6 squared which equals to 36 ft squared.