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p=6×13=72cm2
2,4dm=24cm
p=9×24=216cm2
0,15dm=15mm
p=15×150=2250mm2=2,25cm2
a) P=6×13=48cm2
b) 2,4dm=24 cm
P=9×24=216 cm2
c)0,15dm=15mm
P=15×150=2250 mm2