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OpenStudy (anonymous):
A particular model of walkie talkie can broadcast in a circular area. The radius of the broadcast area is 10,000 feet. Find the area of this circle to the hearest square foot.
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OpenStudy (anonymous):
\[ A = \pi r^2 = 3.14 159 265 \times 10000^2 = 314 159 265 \]
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