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
