Final answer:
To find the perimeter of the square-shaped circus stage, we calculate the length of one side by taking the square root of the area, which is 32m. The perimeter is then calculated by multiplying the length of one side by 4, resulting in a perimeter of 128m. Hence the correct answer is option A
Step-by-step explanation:
To calculate the perimeter of a square-shaped circus stage with a floor area of 1024m², we first need to find the length of one side of the square. Since the area of a square is equal to the side length squared, we can find the side length by taking the square root of the area. In this case, the square root of 1024 is 32. Therefore, the length of one side of the square is 32m.
Since a square has four equal sides, the perimeter of the square is equal to 4 times the length of one side. In this case, the perimeter is 4 x 32 = 128m.
Therefore, the correct answer is A) 128.