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pole malego kola= π czyli promien musi byc 1 bo 1²xπ=π
obwod mniejszego kola= 2π×1=2π a 2π= 2×3,14= 6,28
Ob₂=?
P=π*r²
Ob=2*π*r
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P₁=π*(√3)²=3π
P₂=3π:3=π [j²]
P₂=πr₂²
π=πr₂² /:π
r₂=√1
r₂=1 [j]
Ob₂=2*π*1
Ob₂=2π [j]