The width of a CD case is five inches. The length, in case you are wondering, is 4.75 inches. This is the length and width of an average CD case. Some might be a little different, but this is the one most commonly used.
I think the question should be: mm in cm? In which case, there are 10 millimetres in 1 centimetre.
You will be better served if you learn to do unit conversions in general. All it takes is to multiply your starting value by a fraction formed by the unit conversion. In this case, the conversion is that 1 cm = 10 mm. You can make two different fractions: 1 cm/10 mm = 1 or 10 mm/1 cm = 1. Multiply by the form that will divide out the unit you are trying to eliminate.In this case:9 mm x (1cm/10 mm) = 9x1/10 cm = 9/10 cm = 0.9 cmThis type of operation is very easy and very routine.
1 cm = 10 mm 8 cm = 80 mm 80 cm = 800 mm 86 cm = 860 mm 86.3 cm = 863 mm 86.36 cm = 863.6 mm
1 cm = 10 mm 2 cm = 20 mm . . . 9 cm = 90 mm 10 cm = 100 mm 20 cm = 200 mm 30 cm = 300 mm
I presume you mean cm as in centimeters (there being no C prefix in SI units): 100 cm = 1 m ⇒ 48725 cm = 48725 ÷ 100 m = 487.25 m I may seem picky over Cm and cm, but consider: millimeters are mm; 1000 mm = 1 m megameters are Mm; 1000000 m = 1 Mm ⇒ 1 Mm = 1000000000 mm = 109 mm ⇒ 1 mm = 0.000000001 Mm = 10-9 Mm A difference of a factor of a billion made by the prefix being upper case (M) or lower case (m)! It is important to write units in the correct abbreviation so that others read what you mean.
To change mm to cm you simply just multiply your number with 10. In this case the answer will be 5cm
1 cm = 10 mm → 3.5 cm = 3.5 × 10 mm = 35 mm
1 cm = 10 mm 2 cm = 20 mm . . 10 cm = 100 mm . . 15 cm = 150 mm
10 mm = 1 cm . 100 mm = 10 cm . 1,000 mm = 100 cm 2,000 mm = 200 cm . 4,000 mm = 400 cm
10 mm = 1 cm 20 mm = 2 cm 200 mm = 20 cm 240 mm = 24 cm 244 mm = 24.4 cm
10 mm = 1 cm 100 mm = 10 cm 1,000 mm = 100 cm 3,000 mm = 300 cm 3,500 mm = 350 cm