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Mathematics

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MyOpenMath ? m Q Find the diameter of a circle with area of 209 m2. Round your answer to the nearest tenth.

Answer :

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Area = 209 m^2

Equation of area = pi r^2

Substitution

209 = pi * r^2

Solve for r

r^2 = 209 / 3.14

r^2 = 66.56

r = 8.158

Rounding to the nearest tenth

r = 8.2 m

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