Pak Arman mempunyai Tong berbentuk tabung tertutup yang akan dicat diameter Tong tersebut 70 cm dan tinggi 120 cm Berapa cm luas permukaan Tong yang dicat
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Penjelasan dengan langkah-langkah:
[tex]\pi \: r(r + t) \\ \frac{22}{7} \times 35 \times (35 + 120) \\ 22 \times 5 \times 155 \\ 110 \times 155 \\ 17050[/tex]
LP = πR(R + T)
= 22/7(70/2(70/2 + 120)
= 22/7(35(35 + 120)
= 22(35/7(155)
= 22(5(155)
= 110(155)
= 17.050 CM²
[tex]\boxed { \color{cyan} \mathcal{INFINITE \: WORLD}}[/tex]