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Luas Selimut Tabung = Keliling Alas × Tinggi
= ( × d ) × T
= ( × 28 ) × 80
= 88 × 80
= 7040 Cm²
Diameter : 28
tinggi tabung 80
Phi : 22/7
ditanya : luas selimut tabung
jawab :
Luas selimut tabung = phi x diameter x tinggi tabung
= 22/7 x 28 x 80
= 7040