A chord 20cm long subtends an angle of 60° at the circumference of a circle,…

Mathematics NECO 2005

A chord 20cm long subtends an angle of 60° at the circumference of a circle, what is the diameter of the circle the nearest cm?

  • 12cm
  • 20cm
  • 23cm checkmark
  • 60cm
  • 80cm

The correct answer is: C

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