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Verified answer
Mapel : MatematikaBab : Bangun Ruang Sisi Lengkung (BRSL)
Tabung
r = 10 cm
t = 12 cm
Luas permukaan tabung
= 2 x π x r ( r + t )
= 2 x 3,14 x 10 cm ( 10 cm + 12 cm )
= 62,8 cm x 22 cm
= 1.381,6 cm²