Calculate Side Length from Square Area: Finding x When Area = 49 cm²

To find the side length of a square when the area is given, follow these steps:

• Step 1: We are given the area $A = 49 \, \text{cm}^2$.
• Step 2: Use the formula for the area of a square, which is $A = x^2$, where $x$ is the side length.
• Step 3: Solve the equation $x^2 = 49$.
• Step 4: To find $x$, take the square root of both sides: $x = \sqrt{49}$.
• Step 5: Calculate $\sqrt{49} = 7$.

Therefore, the side length of the square is $x = 7 \, \text{cm}$.

From the given answer choices, choice 2: $x=7$ is correct.