80cm = 2.62 feet.
1cm=10mm 800mm*(1cm/10mm)=80cm There are 80cm in 800mm.
A decimeter is equal to 10 Centimeters. 45cm and 35 cm is 80cm, or 8dm, so yes you do.
I would guess that it is around 80cm. which is 8dm. Centimetres are used a lot so it is probably the best to use.
80cm
800mm
1 foot = 30.54cm so 80cm = 2.62 feet or 2 ft 7.44 inches
80cm = 800mm
2
.8m=80cm
divide by 2.54
80cm = 2.62 ft