proofs will parallel lines


by msimard8
Tags: lines, parallel, proofs
msimard8
msimard8 is offline
#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
HallsofIvy is offline
#2
Sep26-06, 04:58 AM
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Thanks
PF Gold
P: 38,898
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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