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garri49 [273]
3 years ago
13

The distance from the center of a compact disc to the edge of the disc is 6 centimeters. What's the area of the compact disc? A.

36 square centimeters B. 452.16 square centimeters C. 18.84 square centimeters D. 113.04 square centimeters
Computers and Technology
1 answer:
kykrilka [37]3 years ago
5 0

Answer:

The area of the compact disc is 113.04 square centimeters

Explanation:

A compact disc can be seen simplistically like a <em>circle</em>.

The area of a <em>circle</em> is given by the formula:

A_{circle} = \pi * r^{2}.

Where \pi is the ratio between the length of a circle's circumference to its diameter, and it is, approximately, \pi = 3.14159265358979.....

And <em>r </em>is the circle's radius (in this case, <em>the distance from the center of a compact disc to the edge of the disc</em>).

For practical purposes, \pi is usually taken with only few decimals (that is, \pi = 3.14).

So, the area of the compact disc is:

\pi * (6cm)^{2}= \pi * 36cm^2 = 3.14 * 36cm^2= 113.04cm^2.

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