52cm^2
1. Square with side length 1 cm:
Surface Area = 4 1 = 4 cm²
2. Rectangle with length 5 cm and width 2 cm:
Surface Area = 2 5 2 + 2 5 3 + 2 2 3 = 10 + 30 + 12 = 52 cm²
3. Circle with radius 3 cm:
Surface Area = 2 π 3 = 6π cm²
4. Rectangle with length 4 cm and width 3 cm:
Surface Area = 2 4 3 + 2 4 2 + 2 3 * 2 = 24 + 16 + 12 = 52 cm²
