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Section 10.3 Inscribed Angles

Section 10.3 Inscribed Angles. Geometry April 10, 2004. Find the measure of the angle. m ABC = ½ (196) = 98. Theorem 10.9. If two inscribed angles of a circle intercept the same arc, then the angles are congruent. J = K. Homework. p.619 (9-23). Inscribed Angles.

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Section 10.3 Inscribed Angles

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  1. Section 10.3 Inscribed Angles Geometry April 10, 2004

  2. Find the measure of the angle. mABC = ½ (196) = 98

  3. Theorem 10.9 • If two inscribed angles of a circle intercept the same arc, then the angles are congruent. • J = K

  4. Homework • p.619 (9-23)

  5. Inscribed Angles • Inscribed Angle – an angle whose vertex is on a circle and whose sides contain chords of the circle • Intercepted arc – an arc that lies on the interior of an inscribed angle

  6. Measure of an Inscribed Angle • If an angle is inscribed in a circle, then its measure is half the measure of its intercepted arc. • mADB = ½ mAB

  7. Find the measure of each arc or angle. • m ADC • = 180

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