¼×2×22/7×14+28 =
kalo bisa pake cara
kalo bisa pake cara
[tex] \frac{1}{4} \times 2 \times \frac{22}{7} \times (14 + 28)[/tex]
[tex] = \frac{1}{4} \times 2 \times \frac{22}{7} \times 42[/tex]
[tex] = \frac{1}{4} \times 264[/tex]
[tex] = \frac{264}{4} = 66[/tex]
ini rumus luas permukaan tabung ya?
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