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Notes 10.2 Finding Arc Measures

Notes 10.2 Finding Arc Measures. Measuring Arcs. The measure of a minor arc is the measure of its central angle. The expression m is read as “the measure of arc AB.”

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Notes 10.2 Finding Arc Measures

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  1. Notes 10.2 Finding Arc Measures

  2. Measuring Arcs The measure of a minor arc is the measure of its central angle. The expression m is read as “the measure of arc AB.” The measure of the entire circle is __________. The measure of a major arc is the difference between ______ and the measure of the related minor arc. The measure of a semicircle is ______.

  3. Postulate 23: Arc Addition Postulate The measure of an arc formed by two adjacent arcs is the sum of the measures of the two arcs.

  4. Ex 1) Find measures of arcs Find the measure of each arc of C, where is a diameter. a) b) c)

  5. Ex 2) You join a new bank and divide your money several ways, as shown in the circle graph. Find the arc measures: a) mb) m

  6. Ex 3) Tell whether the given arcs are congruent. Explain.

  7. Independent Practice #1 Find in the diagram.

  8. Independent Practice #2 Find and

  9. Independent Practice #3 Is ? Explain

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