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What is the areaof a circle having a given diameter. d=16 cm

User Perseus
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Area =
\pi r^2 so if the diameter is 16, radius (r) = 8

3.14 * 8^2 = 3.14*64 = 200.96 is the approximate area

If you're looking for the answer in terms of pi, 64pi is the answer.
User Omiz
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