5. sebuah yoleng susu berbentuk tabung berdiameter 28 cm. Jika luas selimut kaleng susu adalah 628 cm². volume dalam kaleng adalah?
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L selimut = 2πrt
628 = 2 × 22/7 × 14 × t
628 = 88 × t
t = 628/88
t = 7,136
V = πr²t
= 22/7 × 14 × 14 × 7,136
= 4.395,776