Ch 11'6 Properties of Chords

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Ch 11.6 Properties of Chords

• Use properties of chords in a circle.

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• Theorem 11.10
• Words If two chords intersect inside a circle,
  then the measure of each angle formed is one half
  the sum of the measures of the arcs intercepted
  by the angle and its vertical angle.
• Symbols

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Practice

• Find the value of x.

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• When two chords intersect in a circle, four
  segments are formed.
• Theorem 11.11
• Words If two chords intersect inside a circle,
  then the product of the lengths of the segments
  of one chord is equal to the product of the
  lengths of the segments of the other chord.
• Symbols EA EB EC ED

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Practice

• Find the value of x.

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Classwork

• Geometry book
• Page 623
• 1-8
• Neighbor help is ok