volume tabung adalah 462cm tinggi tabung 12cm. jari jari tabung adalah....

Volume = phi × r² × t
462 = phi × r² × 12
38,5 = 22/7 × r²
269,5 = 22r²
r² = 12,25
r = √12,25
r = 3,5 cm

[tex]volume = \pi {r}^{2}t \\ 462 = 3.14 \times {r}^{2} \times 12 \\ 462 = 37.68 \times {r}^{2} \\ {r}^{2} = \frac{462}{37.68} \\ {r}^{2} = 12.261 \\ r = \sqrt{12.261 } \\ r = 3.5 \: cm[/tex]