1 meter is 100 centimeters and 1 centimeter 1s 10 millimeter, so 1 meter is 1000 millimeter. Hence 4 meters is 4000 millimeters
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4000 mm (1 meter/1000 mm)= 4 meters========
4
.4 meters=400 mm
Since 1 m = 1,000 mm or 1 mm = 1/1,000 m, then 4 mm = 4/1,000 = 0.004 m
3450 mm = 3.45 meters