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b) 2*(5*5) + 2*(5*8) + 2*(5*8) = 210cm2
a = 2cm
b = 4cm
c = 3cm
Pc=2Pp+Pb
P = 2*(ab + bc + ac)
P= 2*(2 * 4 + 4 * 3 + 2 * 3)
P= 52 cm^2
B
a = 5cm
b = 5cm
c = 8cm
Pc=2Pp+Pb
P = 2*(ab + bc + ac)
P= 2*5*5+5*8+5*8)
P= 210 cm^2