a=5
b=a+3=8
P=a·b=5·8=40cm²
5*5=25
(5+3)*5=8*5=40
odp 40cm2
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a=5
b=a+3=8
P=a·b=5·8=40cm²
5*5=25
(5+3)*5=8*5=40
odp 40cm2