Jawabanmu

2014-08-29T08:43:40+07:00
10cm = 1dm, 4m = 40dm

volume = 3,14 x 1/2 x 1/2 x 40
             = 31,4 (d)
1 5 1
2014-08-29T08:44:06+07:00
10cm = 1dm, 4m = 40dm

volume = 3,14 x 1/2 x 1/2 x 40
1 1 1