117 km : cm A 217 B 2.170 C 2 l .700 D 217.000
117 km : cm A 217 B 2.170 C 2 l .700 D 217.000
the answer is D: 217,000 cm
1 km=100,000 cm
2.17 km=2.17×100,000=217,000 cm