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32cm=a*5cm
a=32cm/5cm
a=6,4
Obwód:
6.4 * 4=25.6cm
h=5cm
P=a*h
32=a*5
a=32/5
a=6,4 cm
Obw.=4*a
Obw.=4*6,4
Obw.=25,6 cm
pozdrawiam:)