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Published byPosy Rice Modified over 9 years ago
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Inscribed angles [11.3] Objectives Students will be able to… Find the measure of an inscribed angle Find the measures of an angle formed by a tangent and a chord
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Inscribed Angle Theorem Inscribed Angle : sides are chords, vertex is on the circle THEOREM : The measure of an inscribed angle is half the measurement of the intercepted arc
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Example #1 Find the value of each variable.
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Corollaries to Inscribed Angle Theorem 1.) 2 inscribed angles that intercept the same arc are congruent 2.) An angle inscribed in a semicircle is a right angle 3.) The opposite angles of a quadrilateral inscribed in a circle are supplementary.
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Example #2 Find the values of the variables
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Example #3 and #4 Find the value of the variables.
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Theorem The measure of an angle formed by a tangent and a chord is half the measure of the intercepted arc
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Example #5: Find x.
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Example #6: Find the value of a.
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