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# Proving that lines are parallel

Hi, I need help solving this problem - any help would be appreciated :)

$$P$$ and $$Q$$ are points on the bisector of the exterior angle $$A$$ of triangle $$ABC$$ with A between $$P$$ and $$Q$$, and $$PB$$ is parallel to $$QC$$. Point $$D$$ is on BC such that $$DP=DQ$$. Prove that $$AB$$ is parallel to $$DQ$$.

Note by Julian Yu
1 year, 4 months ago

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