How many discs can be cut from a rectangular sheet of iron 9 decimeters long and 4 decimeters wide with a diameter of 2 decimeters?

How many discs can be cut from a rectangular sheet of iron 9 decimeters long and 4 decimeters wide with a diameter of 2 decimeters?


nine



On a rectangular sheet of iron 20 decimeters in length and 12 decimeters in width, how many circles can be taken out of a round sheet of iron with a diameter of 2 decimeters?


20 / 2 × 12 / 2 = 60



On a 9-decimeter-long and 4.5-decimeter-wide rectangular sheet iron, a small disc with a diameter of 2 decimeters can be intercepted at most______ One


9 △ 2 ≈ 4 (pieces) 4.5 △ 2 ≈ 2 (pieces); 4 × 2 = 8 (pieces); answer: at most 8 pieces can be intercepted