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Podstawa: 0,5x
4x + 8 * 0,5x = 96
4x + 4x = 96
8x = 96 /: 8
x = 12
Pc = 2Pp + Pb
Pc = 2 * (6*6)+ 4*(12*^)
Pc = 72+288
Pc = 360cm²