Odpowiedź :
Jeśli dobrze zrozumiałem to:
Pc = 2*Pp + 4*Pb
Pp = 2cm * 2cm = 4cm²
Pb = 2cm * 4cm = 8cm²
Pc = 2 * 4cm² + 4 * 8cm² = 8cm² + 32cm² = 40cm²
V = 2cm * 2cm * 4cm = 16cm3
Jeśli dobrze zrozumiałem to:
Pc = 2*Pp + 4*Pb
Pp = 2cm * 2cm = 4cm²
Pb = 2cm * 4cm = 8cm²
Pc = 2 * 4cm² + 4 * 8cm² = 8cm² + 32cm² = 40cm²
V = 2cm * 2cm * 4cm = 16cm3