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P=4*25πcm²
P=100πcm²
V=4/3 πr³
v= 4/3*125πcm³
V=166 i 2/3 πcm3
V=4/3π * r³
V= 4/3*3,14*5³
V=523,(3) cm³
P=4π*r²
P=4*3,14*5²
P=314 cm²
P = 4 π 5² = 100π ≈ 314cm²
V = 4/3 пR³ → objętość kuli
V = 4/3 π 5³ = 500/3 π = 166⅔ π
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