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b=9cm
Pole= 4cm*9cm=36 cm kw.
obwód=2*4cm +2*9cm=8cm+18cm= 26cm
a=3cm
b= 12cm
Pole= 3cm*12cm= 36 cm kw.
obwód= 2*3cm+ 2*12cm= 6cm+ 24cm= 30cm
A=6cm
b=6cm
Pole= 6cm*6cm=36 cm kw.
Obwód= 4*6=24cm
a= 18cm
b=2cm
Pole= 18cm*2cm= 36cm kw.
Obwód= 2*18cm+2*2cm= 36cm+ 4cm= 40cm