Volume of a cylinder = πr²h. Substitute r=12 and h=60: volume = 3.14 × 12 × 12 × 60 = 27129.6 cubic m. Think of a cylinder as many equal circular layers stacked up. So we find the circular base area πr² and multiply by the height. The answer is in cubic units, so the correct choice is 27129.6 m³.