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A compact disc has a diameter of 11.8 cm. What is the surface area of the disk in square centimeters? In square meters?
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A compact disc has a diameter of 11.8 cm. What is the surface area of the disk in square centimeters? In square meters?

User Nepoxx
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1 Answer

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A disc is a circle so the formula for the area is pie r^2. So plugging in the numbers bring in the answer of 18.53
User Idan Azuri
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