1 geometry section 8-3a inscribed angles page 584
TRANSCRIPT
Worksheet Answer Key1) D2) B3) E4) A5) C6) 201.067) .798) 28.279) 52.3610) 126.111) 603.1912) 37.713) 21.4614) 73.0615) 516) 1217) 3.91
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Vocabulary:Vocabulary:
Inscribed Angle: An angle with its vertex on a circle and sides that contain chords of a circle.
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Inscribed AnglesInscribed Angles
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We know that the measure of a central angle is equal to the measure of the arc it contains.
Inscribed Angle Theorem:The measure of an inscribed angle is half the measure
of its intercepted arc.
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Theorems:Theorems:
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If two inscribed angles intercept the same arc, then they are congruent.
An inscribed angle that intercepts a semicircle is a right angle.
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Exercises:Exercises:Find the measure of each angle or arc.
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98o mMN
(
98o mNOM
49o mMPN
64o mMNP
67o mNMP
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Exercises:Exercises:AB bisects CAD, mBD = 95o, and mAD = 74o.
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95o mCAD
84.5o mBCA
47.5o mCAB
85o mCBD( (