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Indian Navy AA (Artificer Apprentice) Areas Related to Circles — practice questions

Explore 1 free Areas Related to Circles questions in Indian Navy AA (Artificer Apprentice) Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Areas Related to Circles questions and exercises with answers

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The formula for the length of an arc of a circle of radius r and angle theta (in degrees) isRead the answer and worked solution →

Worked practice questions

The formula for the length of an arc of a circle of radius r and angle theta (in degrees) is

  1. (theta/180) × pi × r squared
  2. (theta/360) × 2 × pi × r
  3. pi × r squared
  4. 2 × pi × r
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Correct answer: B. (theta/360) × 2 × pi × r

1. A full circle (360 degrees) has circumference 2 × pi × r. 2. An arc of angle theta is the fraction theta/360 of that. 3. Hence arc length = (theta/360) × 2 × pi × r. _Source: syllabus Mathematics, Ch 11 "Areas Related to Circles", §11.2_

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