Pomocy! Oblicz pole koła o obwodzie 0,12π m
O=2πr
O=0,12πm
0,12πm=2πr /:π
0,12m=2r /:2
0,06m=r
P=πr²
P=π*(0,06m)²
P=0,0036πm
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O=2πr
O=0,12πm
0,12πm=2πr /:π
0,12m=2r /:2
0,06m=r
P=πr²
P=π*(0,06m)²
P=0,0036πm