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Pp=6cm×5cm=30cm²
Pb=7cm×5cm=35cm²
7cm×6cm=42cm²
P1=7cm×5cm=35cm²
P2=7cm×6cm=42cm²
P3=7cm×5cm=35cm²
P4=7cm×6cm=42cm²
Pc=Pp×h
Pc=30cm²×7cm=210cm²
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