You do not specify if the 8 mm is the circumference, diameter or radius. Please clarify.
8mm
If the diameter is 16mm, then the radius is diameter/2 = 8mm.
The volume is 2211.7mm3
circumference = pi x diameter = 3.1416 x 8mm = 25.13mm (approx)
The degree of the arc is: 30.08 degrees.
8mm tapes can only be viewed with the aid of an 8mm player. One's best bet to watch 8mm tapes in this case is to purchase another 8mm player that is not broken.
Measure the width of the film, if it equals 8mm then you have an 8mm tape.
8mm = 0.008 metres.
8mm is greater.
0.8 0.8cm=8mm
8mm is a little wider.