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36=a*4
a=36/4
a=9
p=a*h
36=a*3
a=36/3
a=12
obw=2*9+2*12=18+24=42cm
więc,
h1=3cm
h2=4cm
a-jeden bok
b-drugi bok
czyli,
a*3cm=36cm2
b*4cm=36cm2
a=12cm
b=9cm
obw= 2*12cm+2*9cm=24+18=42cm