Find the Angle APB

If PA and PB are two tangents to a circle with center O such that angle AOB = 110 degree , then the angle APB is

  1. 900
  2. 700
  3. 600
  4. 550
Manish Listener Asked on 15th June 2015 in Maths.
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  • 1 Answer(s)

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    Answer: (2) 70
    Explanation:-
    Given- AOB = 110
    In the figure-

    RE: Find the Angle APB


    Sum of APB + AOB + PBA + PAB = 360                             (Sum of angles of  a quadrileteral is 360)
    APB + 110 + 90 + 90  = 360
    APB + 290 = 360
    APB = 360 – 290
    APB = 70
    Hence, the answer is (2) 70.

    Anurag Mishra Professor Answered on 17th June 2015.
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