Tolong beserta caranya

<p>Jawaban yang tepat adalah 1000 putaran</p><p>&nbsp;</p><p>Pembahasan :</p><p>t = 2 m = 200 cm</p><p>d = 112 cm&nbsp;</p><p>r = 112 : 2 = 56 cm</p><p>𝞹 = 22/7</p><p>&nbsp;</p><p><strong>Mencari luas selimut tabung (Ls)</strong></p><p>Ls = 2 x 𝞹 x r x t</p><p>&nbsp; &nbsp; &nbsp;= 2 x 22/7 x 56 x 200</p><p>&nbsp; &nbsp; &nbsp;= 70. 400 cm²</p><p>&nbsp; &nbsp; &nbsp;= 7,04 m²</p><p>&nbsp;</p><p><strong>Mencari banyak putaran</strong></p><p>Banyak putaran = 7040 : 7,04</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 1000 putaran</p><p>&nbsp;</p>