pi*2r=cpi*d=cd=c/pidiameter=8.91267681
The diameter of a CD is 11.43 so the radius is 5.715.
Standard CDs have a diameter of 120 mm; that would be a radius of 60 mm. Since area is calculated as the value of pi (3.1416) times the square of the radius, we calculate as follows: Area A = pi X r2 = 3.1416 X 60 mm X 60 mm = 3.1416 X 3600 mm2 = 11,309.76 mm2. That value translates to 113.0976 square centimeters or 17.5301631 square inches. The area just calculated includes the hole. If you wish the hole excluded, so you have just the surface area of the disk, subtract the area of the hole, which has a diameter of 15 mm. The hole, with a radius of 7.5 mm, has an area of 176.715 mm2. Subtracting that from the area of a circle with a 120 mm diameter (11,309.76 mm2), we get a true surface area of 11,133.045 mm2 or 17.2562543 in2.
many. I have many cd's. I have a lot of cd's
Well, isn't that a happy little question! When you divide CD by XX, you're essentially breaking CD into XX equal parts to see how many times XX fits into CD. It's like sharing a big, beautiful painting with XX friends to make sure everyone gets a fair share of the joy. Just remember to take your time, enjoy the process, and let those happy little numbers guide you to a peaceful solution.
According to Red Book specifications, a standard CD is 120 mm (4.75 inches) in diameter and 1.2 mm (0.05 inches) thick
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A standard CD disk is 12 cm, the size of a CD Box would have to be bigger to fit the standard size, but there are so many different styles of CD Boxes to give a correct measurement here.
A standard CD:- 15mm Internal diameter, 120mm external diameter, 1.1 mm thick A mini CD:- 15mm Internal diameter, 80mm external diameter, 1.1 mm thick
a CD is 120mm (4.7 inches) in diameter and 60mm radius, the hole is 15mm diamter (0.6 inches).
a CD is 120mm (4.7 inches) in diameter and 60mm radius, the hole is 15mm diamter (0.6 inches).
Standard CDs have a diameter of 120 mm
The standard thickness of a CD is 1.2mm (about .05 inches), but can vary from 1.1 to 1.5mm.
pi*2r=cpi*d=cd=c/pidiameter=8.91267681
Generally 115mm Diameter CD ( that is ordinary CDs ) play for 74 minutes. This is the standard time for CDs that are in use nowadays.
CD's have a diameter of 5.5 centimeters;)
There are MANY types and sizes of CD players