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Help? https://media.glynlyon.com/o_geo_2011/4/page85c.gif ∠1 = ∠2, ∠3 = ∠4 A. Definition of angle bisector. B. CPCTE
angle bisector bisector or segment that bisects an angle into two equal parts
Not sure what you are asking for CPCTE
it all depends on the given.. like for example in here how do you know that this is an angle/segment bisector?