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Published byLeon Ross Modified over 9 years ago
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Inscribed Angles Section 9-5
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Inscribed Angles An angle whose vertex is on a circle and whose sides contain chords of the circle.
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Inscribed Angle example
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Inscribed circles theorem The measure of an inscribed angle is equal to half of its intercepted arc.
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Measure of intercepted arc
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Inscribed Angle corollaries If two inscribed angles intercept the same arc, then the angles are congruent An angle inscribed in a semicircle is a right angle If a quadrilateral is inscribed in a circle, then its opposite angles are supplementary
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The measure of an angle formed by a chord and a tangent is equal to half the measure of the intercepted arc. Chord/Tangent Angles
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Tangent/Chord angles
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