Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -




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Topic review (newest first)

2012-09-07 09:00:37

Yes, those are the three possibilites, provided both lines are on a plane.

In the drawing below I have shortened the lines so they look like segments to beter fit them on a screen. Remember as lines they continue on forever.

2012-09-07 08:54:27

So they can and cant? depending on the point or direction ?

2012-09-07 08:47:37

On a plane. They can be parallel and never meet. They can intersect at 1 point. They can be the same line ( on top of each other ) and intersect at an infinite number of points.

Parallel postulate talks about parallel lines never crossing.

2012-09-07 08:44:11

I am really having trouble answering this question sad

If I have two lines, will they cross?  Explain fully.  What postulate helps me answer this question?

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