menghitung tabung diameter 5 dan tinggi 5

[tex]v = \pi \: {r}^{2}t \\ = 3.14 \times {2.5}^{2} \times 5 \\ = 9812.5 {cm}^{3} [/tex]

[tex]lp = 2\pi \: r \: (r + t) \\ = 2 \times 3.14 \times 2.5(2.5 + 5) \\ = 15.7 \times 7.5 \\ = 117.75 {cm}^{2} [/tex]

V = πr^2t
= 22/7 x 2,5 x 2,5 x 5
= 2,8 x 12,5
= 35