Odpowiedź:
Pc = 2Pp + Pb
Pp = 2 cm × 2cm = 4 cm ²
ustawiono na sobie 4 klocki więc mnożymy 4 × 2 cm = 8 cm
Pb = 4( 8×2 ) = 4 × 16 = 64 cm²
Pc = 2 × 4 cm² + 64 cm ² = 8 cm ² + 64 cm ² = 72 cm²
odp. D
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Odpowiedź:
Pc = 2Pp + Pb
Pp = 2 cm × 2cm = 4 cm ²
ustawiono na sobie 4 klocki więc mnożymy 4 × 2 cm = 8 cm
Pb = 4( 8×2 ) = 4 × 16 = 64 cm²
Pc = 2 × 4 cm² + 64 cm ² = 8 cm ² + 64 cm ² = 72 cm²
odp. D
odp. D