On a rectangular sheet of iron 9 decimeters long and 4.5 decimeters wide, a small disc with a diameter of 1 decimeter can be cut at most___ One

On a rectangular sheet of iron 9 decimeters long and 4.5 decimeters wide, a small disc with a diameter of 1 decimeter can be cut at most___ One

9 △ 1 = 9 (pieces) 4.5 △ 1 ≈ 4 (pieces) 4 × 9 = 36 (pieces) answer: you can intercept 36 at most

A rectangular sheet of iron is 18 decimeters long and 12 decimeters wide. Cut the largest square on this sheet of iron. What is the area of the remaining sheet of iron after cutting off?

(18-12) × 12 = 72 (square decimeter)
A: the remaining sheet iron is 72 square decimeters

A rectangular sheet of iron is 18 decimeters long and 12 decimeters wide. How many decimeters is the area of the largest square cut on this sheet of iron?

18x12-12x12 = (18-12) X12 = 6x12 = 72 square decimeters