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62,8 = 3,14 . d
62,8 / 3,14 = d
20 cm = d
r = 10 cm
Maka,
V = LAlas . Tinggi
= πr² . t
= 3,14 . 10² . 15
= 314 . 15
V = 4710 cm³
Semoga Membantu...
r² = 62,8 / 3,14
r² = 20
r = 2 √5
V= 3,14 x 2√5 x 2√5 x 15
= 3,14 x 20 x 15
= 942 cm³