1.4 - SKEW LINES QR and MN are skew ON and P Q are skew P Q...

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Chapter 1.4 SEGMENTS, RAYS, PARALLEL LINES AND PLANES
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RAY part of a line one endpoint extends infinitely in one direction AB A B
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SEGMENT part of a line 2 endpoints and all points between them or BA A B AB
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OPPOSITE RAYS 2 collinear rays with the same endpoint opposite rays always form a line A B C BA and BC
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PARALLEL LINES do not intersect coplanar (lie on the same plane)
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PARALLEL LINES M L O N P Q LO MN LO PQ ll ll
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SKEW LINES not parallel never intersect non-coplanar (never on the same plane)
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Unformatted text preview: SKEW LINES QR and MN are skew. ON and P Q are skew. P Q M N R O L Which lines are skew? P Q M N R O L LM and PQ are skew. OL and Q R are skew. • Parallel planes never intersect. • A line and a plane that do not intersect are parallel . Plane A Plane B PlaneC Plane D Lines Plane B t and s ll ll ll t B C A D s Can you name parallel lines and planes? PERPENDICULAR LINES NO MN QR PQ P Q M N R O L Form right angles....
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1.4 - SKEW LINES QR and MN are skew ON and P Q are skew P Q...

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