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11-2: Arcs & Chords

11-2: Arcs & Chords. Definitions. Central angle – an angles whose vertex is the center of a circle. Arc - an unbroken part of a circle consisting of 2 points called the endpoints and all the points on the circle between them. Arcs. Definition.

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11-2: Arcs & Chords

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  1. 11-2: Arcs & Chords

  2. Definitions • Central angle – an angles whose vertex is the center of a circle. • Arc - an unbroken part of a circle consisting of 2 points called the endpoints and all the points on the circle between them.

  3. Arcs

  4. Definition • Adjacent arcs – arcs of the same circle that intersect at exactly one point.

  5. Postulate

  6. Find mBD. Find mJKL.

  7. Definition • Congruent arcs – 2 arcs that have the same measure.

  8. Theorems

  9. TV WS. Find mWS.

  10. Theorems

  11. Find QR to the nearest tenth.

  12. Assignment • Pg. 761 • #20-34 even, 38, 48, 50

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