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b=14cm - 10% * 14cm=14cm-1,4cm=12,6cm
h=14cm + 30% * 14cm=14cm + 4,2cm=18,2cm
P=1/2 (a+b)*h=1/2*26,6cm*18,2cm=242,06 cm2
Odp.:Pole wynosi 242,06 cm kwadratowych
2 podstawa= 14-(14*0,1)=12,6
wysokość=14+(14*0,3)=18,2
P=[(12,6 +14)*18,2]/2=242,06