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

• Feb 9th 2010, 12:23 AM
simplependulum
Is it possible to draw a parallel line only using a ruler
There are three points \$\displaystyle A , B , C \$ , they are not collinear .

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

Is it possible ? .. I don't think it is . There is a big limitation ! (Thinking)
• Feb 9th 2010, 01:11 AM
Prove It
Quote:

Originally Posted by simplependulum
There are three points \$\displaystyle A , B , C \$ , they are not collinear .

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

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?
• Feb 9th 2010, 04:57 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 .
• Feb 9th 2010, 06:45 AM
Bwts
Yes by using the angle at the top or bottom of your ruler.