# Lesson 2 Cool Down: Constructing a Parallel Line

- Author:
- Charles Criniere

Here is point A on line land point Bthat is not on l (see GeoGebra Applet).
Use the digital straightedge and compass moves to create a line

**parallel**to the given line that goes through point B: 1. Create a line through A and B extending in both directions. Label this line p. 2. Create a circle centered at A with radius AB. This circle intersects with line lin 2 places. Label the intersection point to the right of A as C. 3. Create a circle centered at B with radius BA. This circle intersects with line pat A and 1 other point. Label the new intersection point as D. 4. Create a circle centered at D with a radius of length BC. This circle intersects with the circle centered at B in 2 places. Label the intersection point to the right of B as E. 5. Using a different colored text, create a line through B and E extending in both directions. 6. Don't forget to take a picture and upload to Kami. Good luck.