1)
V =(4/3)*π*r³ =(4/3)*π*(5 см)³ =(500/3)*π см³
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2)
V =(4/3)*π*r³ ;
32π/3 = (4/3)*π*r³⇔8 =r³⇒ r= 2.
d =2r = 4.
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3)
V =(4/3)*π*r³ ;
288 π =(4/3)*π*r³⇔72 =r³/3 ⇔r³ =6³⇒ r=6.
C =2π*r =2π*6 =12π.
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4)
V₁/V₂ = (4/3)πr³/πr²*H = (4/3)πr³/πr²*2r =2/3.