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h=3cm*3=9cm
pb=9cm*3cm*4=27cm2*4=108cm2
pc=108cm2+18cm2=126cm2
Pp=a² Pp=3cm*3cm=9cm²
a=3cm
Pp=9cm²
Pb=(a*b)*4 Pb=(3cm*9cm)*4=27*4=108cm²
a=3cm
b=3cm*3=9cm
Pb=108cm²
Pc=2*9cm²+108cm²=126cm²