<h2>
Answer:</h2>
A. square root is the right answer.
Step-by-step explanation:
Now we know that, Betsy finds a <u>square rug</u> that she wants to purchase for her living room and she needs to know the side measure.
Area of the rug is A square feet.
To model this situation, square root function is the best.
We know that area of square having side 's' =
A =
So,
Lets take an example.
Let the area of the rug be 25 square feet.
So, side will be :
side = 5 feet
Hence, the answer is square root function.