31 mm = 3.1 cm
There are 10 mm to one cm. So 18.7 mm equals 1.87 cm
47 mm equals 4.7 cm
one cm is equal to 10 mm
it 10 mm equals 1 cm then 500 mm equals 50 cm so then 580 mm equals 58 cm so the answer is 58.1 cm
62mm
2000 mm = 200 cm
110 mm = 11 cm
77 cm = 770 mm
3000 mm
160 cm = 1600 mm
80 cm = 800 mm