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A CD has a diameter of 12 cm. The hole in the middle of the CD has a diameter of 1.5 cm. Find the area of the CD to the nearest tenth. Use 3.14 for π. A. 111.3 cm2 b. 113.0 cm2 c. 349.4 cm2 d. 445.1 cm
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Jun 10, 2017
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A CD has a diameter of 12 cm. The hole in the middle of the CD has a diameter of 1.5 cm. Find the area of the CD to the nearest tenth. Use 3.14 for π.
A. 111.3 cm2
b. 113.0 cm2
c. 349.4 cm2
d. 445.1 cm2
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C. because to work out the area it is pi radius squared. the area of the CD as a whole is 354.94. The smaller circle inside is 5.55. so 354.94 take away 5.55 is 349.39 rounded up so 349.4 cm^2
Eziz Durdyyev
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Jun 16, 2017
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Eziz Durdyyev
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