1680mm some of these are so simply it a wonder they bother to type them in.
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
77 cm = 770 mm
3000 mm
160 cm = 1600 mm
2540 mm
1 cm = 10 mm ⇒ 168 cm = 168 x 10 mm = 1680 mm
47 mm equals 4.7 cm
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
110 mm = 11 cm
2000 mm = 200 cm
77 cm = 770 mm
3000 mm
160 cm = 1600 mm
1 mm = 0.1 cm 1 cm = 10 mm
80 cm = 800 mm
1 cm = 10 mm so 0.28 cm = 2.8 mm.