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Practice Question

A circle has an area of 49π in2. Which of the following is the circumference of the circle in terms of pi (π)?

Answer Choices:

Correct Answer:

14 π in

Rationale:

📐The area of a circle is πr², and we're told the area is 49π, so set: πr² = 49π → r² = 49 → r = 7.

📏Use circumference formula: 2πr = 2 × π × 7 = 14π.

📊The calculation uses standard circle formulas based on the given area.

📘Always isolate the radius from the area before finding circumference.


📌Core Message

Use the area formula to find the radius, then apply it to the circumference formula.

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This question is from MATH 2024 Exam-4 which contains 39 questions.

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Question Details
  • Category: ATI TEAS
  • Subcategory: MATH.
  • Domain: MATH 2024
  • Answer Choices: 4
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