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30 October, 12:38

About 210,000 people live in a circular region with a 12 mile radius. Find the population density in people per square mile.

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  1. 30 October, 13:20
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    Given:Population, P = 210,000 peopleRadius, r = 12 milesSolving for population density, D, per square mile, first solve for Area, A:A = π (R^2) A = 3.1416 (12^2) A = 3.1416 (144) A = 452.3893 square milesD = P/AD = 210,000/452.3893Population density, D = 464.2019 people per square mile
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