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

1. ## 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 ?

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

2. 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 ?