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2014-02-03T19:44:19+07:00
70cm x  \frac{22}{7} ] = 220 
220 x 500 cm = 110000 = 110 meter
maaf jika salah
2014-02-03T19:46:22+07:00
R=70cm
K=2vir
   2.22/7/70
=440
440x500
panjang lintasan =220000cm
                          =220 m