Odpowiedź:
1cm x 1cm x 15cm
V = 1cm x 1cm x 15cm = 15 cm³
Pp = 1cm x 1 cm = 1cm²
Pb = 1cm x 15 cm = 15 cm²
Pc = 2Pp + 4Pb = 2 x 1cm² + 4 x 15 cm² = 62cm²
1cm x 3cm x 5cm
V = 1cm x 3cm x 5cm = 15cm³
Pp = 1cm x 3cm = 3cm²
Pb1 = 5cm x 1 cm = 5cm²
Pb2 = 5cm x 3 cm = 15cm²
Pc = 2Pp + 2Pb1 + 2 Pb2 = 2 x 3cm² + 2 x 5cm² +2 x 15cm² = 46cm²