📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!
  • google app store apple app store
    • ✖

      Question

      At the centre of a circle of 20 cm radius, the angle

      made by an arc of 24(4/9) cm length is
      A 70° Correct Answer Incorrect Answer
      B 75° Correct Answer Incorrect Answer
      C 60° Correct Answer Incorrect Answer
      D 55° Correct Answer Incorrect Answer

      Solution

      Here, radius r = 20 cm, arc length s = 24(4/9) cm = 220/9 s = rθ ⇒ θ = 220/(9 × 20) ⇒ θ = 11/9 rad => 11/9 × 180/π = 220/3.14 => 70°

      Practice Next
      More Geometry Questions
      ask-question