Hitunglah luas permukaan tabung jika diketahui jari-jari alasnya 14 cm keliling tabung 224,5 cm dan tingginya 15 cm

<p>jawabannya adalah 2552 cm².</p><p>&nbsp;</p><p>diketahui : r = 14 cm, K = 224,5 cm, dan t = 15 cm</p><p>ditanya : Luas tabung = ...?</p><p>Luas permukaan tabung = 2πr(r+t)&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 2 × 22/7 × 14 (14+15)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 88(29)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 2.552 cm².</p>