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1540 = 2 x 22/7 x 7 x t
1540 = 44 x t
t. = 1540/44
t. = 35cm
V. tabung = πr²t
= 22/7 x 7² x 35
=5390 cm³ (B)
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2πrt=1540
2(22/7).7.t=1540
44t=1540
t=1540/44
t=35 cm
V=πr²t
=(22/7).7².35
=22.7.35
=5390
jadi volum tabung tersebut 5.390 cm³