Is it possible to draw a parallel line only using a ruler

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February 9th 2010, 01:23 AM
simplependulum

Is it possible to draw a parallel line only using a ruler

There are three points $A , B , C$ , they are not collinear .

Can we draw a straight line which passes through $A$ and is parallel to line $BC$ using a rule without a scale ?

I am curious about this problem .

Is it possible ? .. I don't think it is . There is a big limitation ! (Thinking)
February 9th 2010, 02:11 AM
Prove It

Quote:

Originally Posted by simplependulum

There are three points $A , B , C$ , they are not collinear .

Can we draw a straight line which passes through $A$ and is parallel to line $BC$ using a rule without a scale ?

I am curious about this problem .

Is it possible ? .. I don't think it is . There is a big limitation ! (Thinking)

Are you using a ruler with measurements or just a straight edge?
February 9th 2010, 05:57 AM
simplependulum

Quote:

Originally Posted by Prove It

Are you using a ruler with measurements or just a straight edge?

Just a straight edge for us to draw straight lines .
February 9th 2010, 07:45 AM
Bwts

Yes by using the angle at the top or bottom of your ruler.

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