diketahui volume sebuah tabung 3.080cm jika jari jari tabung 7cm maka luas selimut tabung tersebut
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Jawaban:
880 cm²
Penjelasan dengan langkah-langkah:
v = π x r² x t
3080 = 22/7 x 7 x 7 x t
3080 = 154 x t
t = V/LA
= 3080 : 154
= 20 cm
Ls = 2πrt
= 2 x 22/7 x 7 x 20
= 44 x 20
= 880 cm²