Monday, January 23, 2012

Problem 717: Intersecting Circles, Midpoint, Angle, Measurement

Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the problem 717 details.

Online Geometry Problem 717: Intersecting Circles, Midpoint, Angle, Measurement.
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2 comments:

  1. PravinJanuary 23, 2012 at 5:43 PM

    x = Angle ADB
    (ADB is the angle subtended by arc AB at the circumference of the circle through A,D,B)
    = Half of angle AO'B
    (AO'B is the angle subtended by arc AB at centre O' of circle through A,D,B)
    = Half of (180 deg - angle ACB)
    (AO'BC is a cyclic quadrilateral)
    = Half of (180 - 50) deg
    = 65 deg

    ReplyDelete
  2. MJChenJanuary 25, 2012 at 8:49 PM

    x=65 Degrees

    ReplyDelete

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