We know that, = 1 cm = 10 mm Then, = 1 mm = (1/10) cm = 35 mm = (35/10) cm = 3.5 cm And, = 1 meter = 100 cm Then, = 1 cm = (1/100) m = 3.5 cm = (3.5/100) m = (35/1000) m = 0.035 m Now, = 1 km = 1000 m Then, = 1 m = (1/1000) km = 0.035 m = (0.035/1000) = 0. 000035 km