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Proofs will parallel lines

by msimard8
Tags: lines, parallel, proofs
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msimard8
#1
Sep25-06, 06:12 PM
P: 59
I need to prove that <acb is equal to one of the other interior angles of triangle abc.

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HallsofIvy
#2
Sep26-06, 04:58 AM
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What do you know about the size of an exterior angle relative to the size of the other two angles in the interior?
If CZ, the bisector of that angle, is parallel to AB, what does that tell you about angles BAC and ACZ?


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