LP tabung dan LS kerucut
[tex]\pi \times r(r + s + 2tt) \\ 3.14 \times 12(12 + 20 + 2(30)) \\ 37,68(92) \\ 3.466,56 \: {cm}^{2} [/tex]
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Verified answer
LP tabung dan LS kerucut
[tex]\pi \times r(r + s + 2tt) \\ 3.14 \times 12(12 + 20 + 2(30)) \\ 37,68(92) \\ 3.466,56 \: {cm}^{2} [/tex]