
How to construct a circle tangent to a given line?

1. 
 Start with the given line, and determine the center of the tangent circle to be constructed.


2. 
 Construct the line perpendicular to the given line, passing through the given point.


3. 
 Construct a circle centered at the given point, passing through the intersection of line 2 and the given line.


4. 
 Circle 3 is the circle to be constructed, is centered at the given point and is tangent to the given line.

