text: # Chord AB subtends ∠AOB = 60° at centre. If OA = 5 cm then find the length of AB (in cm).
  
  2
  by pravin3103
  
  ## Answers
  
  The Brainliest Answer!
  2014-12-28T11:23:28+05:30
  
  ### This Is a Certified Answer
  
  Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
  ∠AOB = 60°
  OA =radius = 5 cm
  OB = 5 cm
  
  Since OA=OB, it is a isosceles triangle.
  ∠ABO = ∠BAO
  
  In the triangle,
  ∠AOB +∠ABO + ∠BAO = 180°
  So ∠ABO + ∠BAO = 180-60 = 120
  ∠ABO = 120/2 = 60 and
  ∠BAO = 60
  
  SO it is an equilateral triangle. So all sides are equal.
  Hence AB = 5cm
  2014-12-28T14:47:00+05:30
  Let the triangle be AOB where ∠AOB = 60°
  Then we have AO = BO = 5 cm
  Since Δ AOB is a isosceles triangle.
  ∠ABO = ∠BAO = (180-60)/2 = 60  degree
  Hence we have, ΔAOB is an equiangular triangle hence an equilateral triangle where all sides are equal ⇒ AO = BO = AB = 5 cm
  Length of AB is 5 cm
explanation: The text extract contains a math question and an answer provided by two different users. The question is about finding the length of a chord AB in a circle, given the angle subtended by the chord at the center and the radius of the circle. Both users provide the same answer, which is 5 cm.
distilabel_metadata.content: Evaluate the user given text extract and determine if it contains a math question and optionally and answer to this question.
  
  Output rules:
  
  1. Briefly describe the document and mention if it contains a question or a question and answer.
  2. Finalize the output with: Label: no-question,question,question-and-answer,multiple-question,multiple-question-and-answer
distilabel_metadata.role: system
distilabel_metadata.content: # Chord AB subtends ∠AOB = 60° at centre. If OA = 5 cm then find the length of AB (in cm).
  
  2
  by pravin3103
  
  ## Answers
  
  The Brainliest Answer!
  2014-12-28T11:23:28+05:30
  
  ### This Is a Certified Answer
  
  Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
  ∠AOB = 60°
  OA =radius = 5 cm
  OB = 5 cm
  
  Since OA=OB, it is a isosceles triangle.
  ∠ABO = ∠BAO
  
  In the triangle,
  ∠AOB +∠ABO + ∠BAO = 180°
  So ∠ABO + ∠BAO = 180-60 = 120
  ∠ABO = 120/2 = 60 and
  ∠BAO = 60
  
  SO it is an equilateral triangle. So all sides are equal.
  Hence AB = 5cm
  2014-12-28T14:47:00+05:30
  Let the triangle be AOB where ∠AOB = 60°
  Then we have AO = BO = 5 cm
  Since Δ AOB is a isosceles triangle.
  ∠ABO = ∠BAO = (180-60)/2 = 60  degree
  Hence we have, ΔAOB is an equiangular triangle hence an equilateral triangle where all sides are equal ⇒ AO = BO = AB = 5 cm
  Length of AB is 5 cm
distilabel_metadata.role: user
distilabel_metadata.raw_output_q_a_detector_0: The text extract contains a math question and an answer provided by two different users. The question is about finding the length of a chord AB in a circle, given the angle subtended by the chord at the center and the radius of the circle. Both users provide the same answer, which is 5 cm.
  
  Label: question-and-answer