Geo April 1, 2009
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Geo April 1, 2009

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Geo April 1, 2009 Presentation Transcript

  • 1. April 1, 2009 A B Name all sets of  congruent angles: C D E
  • 2. Other Angle Relationships mADB = 200o A How is this different than an inscribed angle? chord & tangent D instead of 2 chords How is this similar to an inscribed angle? B vertex is on circle C The intercepted arc and angle have the same  relationship as inscribed angles.
  • 3. B Find mBCA C 101o A H Find mFH 129o F G
  • 4. Other Angle Relationships What is different about  this angle? vertex is outside  A of the circle 1 CAE =     (mCE ­ mBD) 2 A
  • 5. 108o 34o xo 243o o y 1 (243o­117o) y = 2
  • 6. HW: pg. 683 #3­14 Quiz on Friday (10.2 ­ 10.4)