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keliling =2r = 2 x 22/7 x 70 = 440 cm =
22 km = 2200000 cm : 440cm = 5000 x putaran
= 2 x (22/7) x 70 cm
= 440 cm
Panjang lintasan = 22 km
Perputaran ---> 22 km : 440 cm
=2.200.000 cm : 440 cm
= 5000 kali