21 inches is 53.34 centimeters.
182.9 cms
5' 9" = 175.26 cms
10 cms in one mm
720*480
55.5 inches is 140.97 cms.
On a 21 inch TV yes on a Computer monitor no
No there is no such thing as a 21inch bicycle
172.72 centimeters.
110 cms = 41.31 inches (to 4 sf)
35 cms is 3.5 dms (as there are 10 cms in a dm)
Yes it can use any TV that can be connected
360cm