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Pp=a²=[(5,2cm)]²=27,04cm²
Pb=4*h*a=4*5,2cm*8,1cm=168,48cm²
Pc=2*27,04cm²+168,48cm²=222,56cm²
Pb=4*h*a=4*5,2cm*8,1cm=168,48cm²
Pc = 2Pp + Pb = 2*27,04cm² + 168,48cm² =54,08cm² + 168,48cm² =
= 222,56cm²
h=8,1cm
Pc= (a²) *2 + 4*(a*h)
Pc=27,04*2+4*(5,2*8,1)
Pc=54,08+ 4*42.12
Pc=54,08+168,48
Pc=222,56 cm²