The area of a square is equal to the area of a rectangle whose dimensions are cm and cm. Calculate the side length of the square.
Step 1: Find the area of the rectangle and the area of the square.
The square has the same area as the rectangle, so its area is , too.
Step 2: Find the side length of the square.
Since the area of a square is equal to the side length multiplied by itself, the side length is equal to the square root of the area.