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198cm3 = 22/7 x r x r x 7
198 = 22 x r2
22x r2 = 198
r2 = 198/22
r2 = 9
r =
r = 3
198 = 22/7 . . 7
198 = 22 .
198/22 =
9 =
r =
r = 3
jari-jari nya 3 cm