Question

The area of a square is given by x?, where x is the length

of one side. Mary's original garden was in the shape of a
square. She has decided to double the area of her
garden.
Part 1 out of 2
Enter an expression that represents the area of Mary's
new garden.
An expression that represents the area is
✓ Check
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Answer 1

Explanation:

If she doubles the area of her lot, it should be 2x^2.

But how do you get that?

The answer is that the sides have now increased to √2x

How did I get that, and why did I choose it?

• The formula for a square's area is s^2
• If you want to double the area, it will be 2 s^2. Now what?
• Take the square root of 2s^2 which is √(2s^2).
• What that means is the side is now √2 s