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108πcm² = 4πr² /:4π
27cm² = r² /√
3√3cm = r
V=4/3πr³
V=4/3π*(3√3cm)³
V=4/3π*81√3cm³
V=108√3cm³
P=108πcm²
v=?
P=4πr²
108π=4πr² I:π
108=4r² I:4
27=r²
r=√27
r≈5,2
V=4/3*r³
V=4/3 * (5,2)³
V=4/3 * 140,608
V=562,432 / 3
V≈187,5
P=4πr²
108π=4πr²/:4
27=r²
r=√27
3√3cm = r
v=⁴/₃πr³
V=4/3π*(3√3cm)³
V=4/3π*81√3cm³
V=108√3cm³