Jawabanmu

2014-02-16T16:36:10+07:00
754,385 =  \pi  \pi
754,385 = 3,14 x r²
r² = 754,385/3,14
   = 240,25
r= √240,25
Jawaban paling cerdas!
2014-02-16T16:37:13+07:00
Luas = 1/4 π d²
754,385 x 4 = π d²
3017,54 = 3,14 d²
961 = d²
d = 31