1 S length = up and down+front and back+around.
= 15× 10×2+ 15×8×2+8× 10×2
=300+240+ 160
=700 square centimeters
V length =abh
= 15× 10×8
= 150×8
= 1200
2 10× 10×6=600
10× 10× 10= 1000
3 4×4×3. 14×2+8×3. 14× 12= 100.48+50.24= 150.2
4×4×3. 14× 12=602.88
two
8×5×2+2×2×3. 14×3=80+37.68= 1 17.68
I'm bored to death, that's all