To determine who needs a larger piece of cardboard, we need to calculate the area of each piece.1. Karla's piece of cardboard - Dimensions: 3 cm by 1 cm - Area = Length × Width = 3 cm × 1 cm = **3 cm²**2. May's piece of cardboard - Dimensions: 4 cm by 8 cm - Area = Length × Width = 4 cm × 8 cm = **32 cm²**Conclusion:- Karla needs 3 cm² of cardboard.- May needs 32 cm² of cardboard.May needs a larger piece of cardboard.