Emily wants to buy a square tablecloth to cover a square card table. She knows the tabletop has an area of 9 square feet. What are the minimum dimensions of the tablecloth Emily needs?

[ ] feet by [ ] feet.

3 ft by 3 ft

Step-by-step explanation:

The minimum dimensions will be those of a square with an area of 9 ft².

The formula for the area of a square is

A = l² Substitute the area

9 = l² Take the square root of each side

l = 3

The minimum dimensions are 3 ft by 3 ft.