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The area of a circle is 49 π. Find its circumference in term of π.

Correct answer: A. 14 π

  • A. 14 π
  • B. 49/2 π
  • C. 49 π
  • D. 98 π

Explanation

To find the circumference, first calculate the radius from the area given. The radius is 7, so the circumference is 2π(7) = 14π. The correct answer is Option A. Option B wrongly divides the area, Option C confuses area with circumference, and Option D incorrectly doubles the circumference value.

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About Quantitative Reasoning

Quantitative reasoning applies arithmetic and basic algebra to numerical relationships, including percentages, ratios, averages, fractions, proportions, profit and loss, rates, time, work and measurement. Questions focus on translating words into equations, choosing an efficient method and checking whether the result is numerically reasonable.

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