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In this video I will define and explain postulates of parallel and perpendicular lines.
1) If there is a line and a point not on the line then there is exactly one line through the point PARALLEL to the initial line.
2) If there is a line and a point not on the line then there is exactly one line through the point PERPENDICULAR to the initial line.

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Next video in this series can be seen at:
https://youtu.be/zQ_8O2jWDjs