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OpenStudy (anonymous):
Given: Segment D B is congruent to segment D C, determine which of the following describes Segment AD in Triangle A B C.
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OpenStudy (anonymous):
@clarkydances
OpenStudy (anonymous):
Perpendicular bisector Angle bisector Median Altitude
OpenStudy (anonymous):
since DB = DC, we know D cuts BC in half, so it is a median. Also, AD is perpendicular to BC, so AD is an altitude of ABC. Lastly, for all this to be true, AB must = AC, thus AD must bisect BAC, meaning AD bisects BAC, so it is also a perpendicular bisector. Answer is D
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