Jawabanmu

2014-02-28T14:34:14+07:00
2014-02-28T14:56:24+07:00
3,3 km = 330.000 cm 330000 = k.lingkaran x 5000 330.000 =2.3,14 . r x 5000 330.000= 31400 x r r = 330.000 : 31400 = 10,5 cm