Answer:
A. 1ft
Explanation:
1 x 1 = 1 squared
So 1 foot x 1 foot = 1 square foot
a. 1 ft
The area of a square is found by using the formula
A = s^2 where s is the side length of the square
We know the area is 1 ft^2
1 = s^2
Take the square root of each side
sqrt(1) = sqrt(s^2)
1 = s
The side length is 1 ft
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