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Jeśli to 6cm to byłaby średnica to tak bo 24:6= 4:)
Licze na punkty:)Pozdro
d=24
r=12
P=πr²
P=π*12²
P=144π
P=452,16cm²
r=6
P=π*6²
P=π*36
P=113,04
4*113,04=452,16