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Ps= 30cm²
Pb = 30cm² × 5
Pb = 150cm²
Pp = (1/2cm × 5cm × 5cm) × 5
Pp = (2,5cm × 5cm) × 5
Pp = 12,5cm × 5
Pp = 62,5cm²
Pc = 150cm² + 62,5cm²
Pc = 212,5cm²
nie wiem mnie wyszło tyle...;/