Which one of the following has a greater perimeter than the rest?

To find the perimeter of each shape, we calculate as follows: For Option A, a square with an area of 36 square cm has a side of 6 cm. The perimeter is 4 multiplied by 6, which equals 24 cm. For Option B, an equilateral triangle with a side of 9 cm has a perimeter of 3 multiplied by 9, which equals 27 cm. For Option C, a rectangle with an area of 40 square cm and a length of 10 cm must have a width of 4 cm. The perimeter is 2 multiplied by the sum of 10 and 4, which equals 28 cm. For Option D, a circle with a radius of 4 cm has a perimeter calculated as 2 multiplied by pi (approximately 3.14) multiplied by 4. This equals approximately 25.12 cm. Comparing the results: 24 cm, 27 cm, 28 cm, and 25.12 cm. The rectangle in Option C has the greatest perimeter.