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Unformatted text preview: 14-4 Arcs of Circles
A) Definitions a. Central Angle i. An angle whose vertex is the center of the circle b. Major Arc i. Degree measure is 360 minus the measure of the corresponding minor arc (major arcs are greater than 180) c. Minor Arc i. Degree measure is the measure of the corresponding central angle (minor arcs are less than 180)
d. Semicircle i. Degree measure is 180 B) Theorem 14-5 (The Are Addition Theorem) a. If B is a point of AC, then mABC = mAB + mBC Examples) Name.... 1) minor arcs major arcs semicircles 2) 3) Fill in all the arc measures ...
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- Spring '09