an object with a surface area of 20 cm^{2} and a volume of 10 cm^{3}
an object with a surface area of 8 cm^{2} and a volume of 2 cm^{3}
an object with a surface area of 10 cm^{2} and a volume of 30 cm^{3}
an object with a surface area of 40 cm^{2}3