What is the width of a CD-ROM in millimeters?

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Multiple Choice

What is the width of a CD-ROM in millimeters?

Explanation:
A CD-ROM’s width is the distance across the disc, which is its diameter. For a standard CD-ROM, that diameter is 120 millimeters (about 12 centimeters). So the widest span across the disc is 120 mm. Remember, the radius is half of that, 60 mm, which can cause confusion if someone talks about width as if it were the radius. The other listed sizes don’t match the standard CD diameter.

A CD-ROM’s width is the distance across the disc, which is its diameter. For a standard CD-ROM, that diameter is 120 millimeters (about 12 centimeters). So the widest span across the disc is 120 mm. Remember, the radius is half of that, 60 mm, which can cause confusion if someone talks about width as if it were the radius. The other listed sizes don’t match the standard CD diameter.

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