Luas selimut tabung = 2 × π × r × tinggi
= 2 × 3,14 × 10 × 20
= 2 × 31,4 × 20
= 2 × 628
= 1.256 cm²
Jadi, luas selimut tabung tersebut adalah 1.256 cm².
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Luas selimut tabung = 2 × π × r × tinggi
= 2 × 3,14 × 10 × 20
= 2 × 31,4 × 20
= 2 × 628
= 1.256 cm²
Jadi, luas selimut tabung tersebut adalah 1.256 cm².