1 cm equals to 10 mm. Thus

1 mm = 1/10 cm

Thus for finding equivalent of 80mm in centimeters, simply divide 80mm by 10, You'll get

80mm/10 = 8cm

Hence 80mm=8 cm

1 mm = 1/10 cm

Thus for finding equivalent of 80mm in centimeters, simply divide 80mm by 10, You'll get

80mm/10 = 8cm

Hence 80mm=8 cm