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Verified answer
Luas Selimut = 2πrtr = Luas / 2πt
r = 7.536 / (2 x 3,14 x 40)
r = 7.536 / 251,2
r = 30 cm
Verified answer
Luas selimut = 2 x π x r x t7.536 cm² = 2 x 3,14 x r x 40 cm
7.536 cm² = 251,2 cm x r
r = 7.536 cm² : 251,2 cm
r = 30 cm
Jadi, panjang jari-jari tabung tersebut adalah 30 cm