Answer:
88 cm²
Explanation:
Each square is 1 cm². Count the squares of each face and add them.
Front face (purple): 14 cm²
Back face (hidden): 14 cm²
Right lower face (orange): 6 cm²
Right upper face (orange): 6 cm²
Left face (hidden): 12 cm²
Upper top face (blue): 3 cm²
Lower top face (blue): 15 cm²
Bottom face (hidden): 18 cm²
Add all areas above:
88 cm²