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What is the circumference of a circle whose radius is ?

easy MCQ 1 mark Class 10 · Mathematics · Areas Related to Circles
Answer

The correct answer is — Simplify: .

Step-by-step solution

  1. Recall the formula for circumference: .
  2. Substitute into the formula: .
  3. Simplify: .
Common mistake: Using instead of (forgetting the factor 2).

Concept tested: Circumference formula

Published · How this solution was prepared and checked

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