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Verified answer
Tinggi = 30 cmjari-jari = K/2 phi = 66/ 2 22/7 = 66 / 6,28 =10,5 cm
volume = 1/3 x 22/7x10,5x10,5 x 30 = 1/3 x 346,5 x 30 = 346,5 x 10
= 3465 cm3