Oblicz obiętość kuli, jeżeli jej pole powieszchni wynosi 324\pi cmx{2}
Pc=4πr²
Pc=324πcm²
4πr²=324πcm²|:4π
r²=81cm²
r=√81cm²
r=9cm
V=4/3πr³
V=4/3π*(9cm)³
V=4/3π*729cm³
V=972πcm³
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Pc=4πr²
Pc=324πcm²
4πr²=324πcm²|:4π
r²=81cm²
r=√81cm²
r=9cm
V=4/3πr³
V=4/3π*(9cm)³
V=4/3π*729cm³
V=972πcm³