How long can you cast a 25.12cm, 56cm cylindrical steel with a side length of 5cm into a square cuboid?

How long can you cast a 25.12cm, 56cm cylindrical steel with a side length of 5cm into a square cuboid?

25.12÷3.14÷2=4cm
3.14 × 4 & # 178; × 12.56 △ (5 × 5) = 25.240576cm, take the approximate value