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d = 14cm
r = 7cm
Luas prmukaan tabung = 2 x luas tabung + luas selimut tabung
= 2 x (22/7 . 7 . 2) + 2 (22/7 . 7 . 20)
= 2 (44) + 2 (440)
= 88 + 880
= 968cm
r = 14/2 = 7 cm
Lp = Ls + La
Lp = 22/7. 14. 20 + 22/7. 7² = 1034 cm²