Hello, jam2011!
TRUE or FALSE
false 1. two coplanar lines are parallel. . Correct
false 2. two parallel lines are coplanar. . [ No If two lines are parallel, they lie in the same plane.
true 3. nonintersecting segments are parallel. . No The segments could be like this:
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true 4. nonintersecting rays are parallel. . No The rays could be like this:
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true 5. skew lines do not intersect. . Correct
true 6. two segments contained in parallel rays are coplanar . Correct
false 7. two lines that are not skew and do not intersect are parallel. . No If two lines are not skew, they are coplanar.
If they are coplanar and do not intersect, they are parallel.
true 8. a segment that does not intersect a line is parallel to the line. . No The segment and line could be like this:
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true 9. coplanar lines cannot be skew lines. . Correct
true 10. two lines parallel to a third line are parallel to each other. . Correct