It is: 840 mm
There are 4 millimeters more in 8.4 cm than 8 cm. This is because 8.4 cm is 84 mm and 8 cm is 80 mm, so the difference is 4 mm.
84 cm is equal to 840 mm because there are 10 millimeters in 1 centimeter.
84 mm = 8.4 cm
There are 10 mm in every 1 cm.So 8.4 cm = 8.4*10 = 84 mm.
1 cm = 10 mm so 1.43 cm = 14.3 mm
84 mm ;-)
1 cm = 10 mm.
10 mm = 1 cm
1 cm = 10 mm
A cm is 10 mm.
10 mm = 1 cm
2.4 cm = 24 mm 1 cm - 10 mm